300 Norma Mag

Mar 28, 2012
131
5
18
41
#51
Hello .300 Norma Mag Shooters,

We are an American manufacturer of match-grade brass located in Pittsburgh, PA. We are working on our first run of .300 Norma brass and are looking for evaluation shooters to test it out. If you would be interested in receiving some samples and providing us with your feedback, please fill out the form at [video]https://www.petersoncartridge.com/shooters/evaluation-registration[/video]

Happy Shooting!
Clint
Signed up. Thanks for the opportunity to help out


Sent from my iPhone using Tapatalk
 
Apr 25, 2014
715
126
43
Boise, Idaho
#52
I'm running a 26" carbon fiber Proof Research barrel. My initial load development looks like this.

230gr Berger Hybrid
1/9 twist
CCI 250 primer
92.6grs RE33
2972 fps @ 6.1 SD

There were great nodes at this velocity and at 2880 fps. This barrel still has less than 100 rounds through it, but I needed a load to take it elk hunting. So this is it. My Proof barrels in the past have usually picked up about 120fps by the time they hit 170 to 200 rounds. So I'll rework this load after I get it broke in. I'm sure I'll be able to drop that powder charge down and still stay on that node.
 
Mar 28, 2012
131
5
18
41
#54
Shot this group yesterday evening. 3 shots, 356 yards, 2/3". This is a hot load but the accuracy speaks for itself!
215 Berger
88gr N570
2.815" BTO
SD: 11.1
3170fps
I am shooting the 215 Berger right now too. I am really impressed with them. I shot this group last weekend at 765 yards. Not to bad for a brand new rifle and this was my first shots fired out of it.



Sent from my iPhone using Tapatalk
 
Apr 25, 2014
715
126
43
Boise, Idaho
#57
I dropped a nice little 5x6 bull elk with the 230gr Berger Hybrid this past Sunday. The rumors that the big Hybrid makes a pretty good hunting round are true. My bull made it 14 yards from where i hit him. Post mortem showed the bullet performed perfectly.

[IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/i.imgur.com\/cTHCqcQ.jpg"}[/IMG2]
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/i.imgur.com\/txO3hnz.jpg"}[/IMG2]

 
Last edited:

WtxShooter

Gun loving dad!
Feb 17, 2017
174
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38
Lubbock, TX
#58
jonthompsXFirst Sergeant
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300 Norma Mag Load Data
10/14/2014
(1 vote) [HR][/HR]
Wanted to get this back up on the new site:

There is lots of scattered handloading info for the 300NM but I haven't found a dedicated thread so I started one. Loads are organized by bullet weight. Anyone have a different load they really like? Here's what I've found so far:

Trim to: 2.4902" min 2.502" max

208 AMAX
87gr H1000
28” 1-9 Pac-Nor
3140fps

210gr Berger
89.5gr Ramshot magnum
27” 1-10 Rock Creek

210gr Berger
89 g. Retumbo
27" barrel
3130 fps

215gr Berger
92grs RL33
30” barrel
COAL 3.600”
3157 fps (90% case fill)

215gr Berger
89gr Retumbo
26” barrel
COAL 3.600”
3130fps

220gr SMK
92gr H-1000
26” Broughton 1-9
Fed 215GM
COAL 3.463
3003fps

220gr SMK
91gr N-570
30" Bartlein 1-10
Fed 215GM
3200fps

Berger 230gr
H1000 85.5 gr
27” 1-10 Krieger 5R
Velocity ???

Berger 230gr
Retumbo 87gr
27” 1-10 Krieger 5R
Velocity ???

Berger 230gr
H1000 80.7gr
30" 1-10" Lilja
Fed 215M
COAL 3.526"
Velocity ???

230gr Berger
89grs RL33
30” barrel
COAL 3.600”
3050 fps (90% case fill)

230gr Berger
86gr Retumbo
26” barrel
COAL 3.600”
3020fps

230gr Berger
88gr RL33
Barrel ???
COL 3.510
2907fps ES: 3.5

230gr Berger
86gr H50BMG
25.5” barrel
FED 215M
COAL 3.530”
2800fps ES: 3.6

230gr Berger
86gr N570
1-10 barrel
Fed 215M
3001fps

230 Berger
85.3gr Retumbo
26" barrel 1:9.5
WLRM primers
2940fps

240gr SMK
81.7gr H-1000
26” Broughton 1-9
Fed 215GM
COAL 3.436
2875fps

240gr SMK
H1000 81.7gr
Fed 215M
COAL 3.436”
Velocity ???

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mkollman74XFirst Sergeant
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1518 posts this site
Re: 300 Norma Mag Load Data
10/14/2014 [HR][/HR]I am not in a position to contribute at this time, but I am a consumer of the info contained. With any luck I'll get my 300 Norma built, and be able to contribute in the coming months. The info RE: barrel length and twist is especially helpful. Bring on the additional data. Anyone running a relatively short barrel?
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260shooterXSergeant
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192 posts this site
Re: 300 Norma Mag Load Data
11/28/2014 [HR][/HR]I believe my 208 A-MAX load was the first one posted. But is a little off.
208 A-MAX
88.8 H-1000
Fed 215 Primer
OAL 3.490
3100 fps
ES 8
28" 1X9 Pac-Nor
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RedRangerRickXGunny Sergeant
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Re: 300 Norma Mag Load Data
01/11/2015 [HR][/HR]
Well I've scoured the section for 300RUM loads with 208s and had no luck. I wonder how close the NM loads would work?

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jonthompsXFirst Sergeant
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2098 posts this site
Re: 300 Norma Mag Load Data
01/18/2015 Last edited 07/30/2015 by jonthomps [HR][/HR]
230gr Berger

H1000 82gr (*max load in my rifle*)

28" 1-10 barrel

Fed 215M

COAL 3.500"

3012fps

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jonthompsXFirst Sergeant
Rating: 3.5/5 this site
2098 posts this site
Re: 300 Norma Mag Load Data
01/26/2015 [HR][/HR]
Reached out to Corey @ Berger Bullets. Here is the data he gave me for their 215gr pill: [TABLE="border: 0"]
[TR]
[TD="colspan: 7"]215 Grain, PN: 30423 Bullet, CIP 3.680" COAL, 26" Barrel. 11/5/2014 RB[/TD]
[/TR]
[TR]
[TD]Bullet[/TD]
[TD]Powder[/TD]
[TD]Start Load In Grains[/TD]
[TD]Approx. Start Velocity[/TD]
[TD]Max. Load In Grains[/TD]
[TD]Approx. Max. Velocity[/TD]
[TD]Fill Ratio[/TD]
[/TR]
[TR]
[TD]215 Grain[/TD]
[TD]Accurate Magpro[/TD]
[TD]81.5[/TD]
[TD]2795[/TD]
[TD]86.0[/TD]
[TD]2945[/TD]
[TD]90%[/TD]
[/TR]
[TR]
[TD]215 Grain[/TD]
[TD]Alliant RE-33[/TD]
[TD]92.5[/TD]
[TD]2838[/TD]
[TD]97.3[/TD]
[TD]3007[/TD]
[TD]98%[/TD]
[/TR]
[TR]
[TD]215 Grain[/TD]
[TD]Hodgdon H1000[/TD]
[TD]83.5[/TD]
[TD]2793[/TD]
[TD]87.7[/TD]
[TD]2932[/TD]
[TD]98%[/TD]
[/TR]
[TR]
[TD]215 Grain[/TD]
[TD]Norma 217[/TD]
[TD]87.0[/TD]
[TD]2823[/TD]
[TD]91.6[/TD]
[TD]2971[/TD]
[TD]103%[/TD]
[/TR]
[TR]
[TD]215 Grain[/TD]
[TD]Hodgdon Retumbo[/TD]
[TD]87.0[/TD]
[TD]2828[/TD]
[TD]91.7[/TD]
[TD]2974[/TD]
[TD]101%[/TD]
[/TR]
[TR]
[TD]215 Grain[/TD]
[TD]Viht. N570[/TD]
[TD]88.0[/TD]
[TD]2847[/TD]
[TD]92.8[/TD]
[TD]3018[/TD]
[TD]98%[/TD]
[/TR]
[/TABLE]
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jonthompsXFirst Sergeant
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2098 posts this site
Re: 300 Norma Mag Load Data
01/27/2015 [HR][/HR]
Here is Berger's data for either of their 230gr pills:


[TABLE="border: 0"]
[TR]
[TD="colspan: 7"].300 Norma Magnum[/TD]
[/TR]
[TR]
[TD="colspan: 7"]230 Grain, PN: 30428 Bullet, CIP 3.680" COAL, 26" Barrel. 1/6/2015 RB[/TD]
[/TR]
[TR]
[TD]Bullet[/TD]
[TD]Powder[/TD]
[TD]Start Load In Grains[/TD]
[TD]Approx. Start Velocity[/TD]
[TD]Max. Load In Grains[/TD]
[TD]Approx. Max. Velocity[/TD]
[TD]Fill Ratio[/TD]
[/TR]
[TR]
[TD]230 Grain[/TD]
[TD]Alliant RE 25[/TD]
[TD]78.0[/TD]
[TD]2695[/TD]
[TD]82.3[/TD]
[TD]2821[/TD]
[TD]93%[/TD]
[/TR]
[TR]
[TD]230 Grain[/TD]
[TD]Hodgdon Retumbo[/TD]
[TD]84.5[/TD]
[TD]2735[/TD]
[TD]89.1[/TD]
[TD]2874[/TD]
[TD]100%[/TD]
[/TR]
[TR]
[TD]230 Grain[/TD]
[TD]Hodgdon US 869[/TD]
[TD]94.0[/TD]
[TD]2669[/TD]
[TD]99.2[/TD]
[TD]2844[/TD]
[TD]105%[/TD]
[/TR]
[TR]
[TD]230 Grain[/TD]
[TD]Hodgdon H50BMG[/TD]
[TD]90.0[/TD]
[TD]2682[/TD]
[TD]94.7[/TD]
[TD]2848[/TD]
[TD]105%[/TD]
[/TR]
[TR]
[TD]230 Grain[/TD]
[TD]Alliant RE 50[/TD]
[TD]93.5[/TD]
[TD]2736[/TD]
[TD]98.6[/TD]
[TD]2913[/TD]
[TD]103%[/TD]
[/TR]
[TR]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[TD] [/TD]
[/TR]
[/TABLE]
[TABLE="border: 0"]
[TR]
[TD="colspan: 7"].300 Norma Magnum[/TD]
[/TR]
[TR]
[TD="colspan: 7"]230 Grain, PN: 30110 Bullet, 3.680" COAL, 26" Barrel. 4/7/2014 RB[/TD]
[/TR]
[TR]
[TD]Bullet[/TD]
[TD]Powder[/TD]
[TD]Start Load In Grains[/TD]
[TD]Approx. Start Velocity[/TD]
[TD]Max. Load In Grains[/TD]
[TD]Approx. Max. Velocity[/TD]
[TD]Fill Ratio[/TD]
[/TR]
[TR]
[TD]230 Grain[/TD]
[TD]Ramshot Magnum[/TD]
[TD]80.5[/TD]
[TD]2626[/TD]
[TD]84.5[/TD]
[TD]2749[/TD]
[TD]87%[/TD]
[/TR]
[TR]
[TD]230 Grain[/TD]
[TD]H-1000[/TD]
[TD]80.0[/TD]
[TD]2654[/TD]
[TD]84.1[/TD]
[TD]2786[/TD]
[TD]95%[/TD]
[/TR]
[TR]
[TD]230 Grain[/TD]
[TD]VIHT N570[/TD]
[TD]79.0[/TD]
[TD]2533[/TD]
[TD]88.1[/TD]
[TD]2850[/TD]
[TD]94%[/TD]
[/TR]
[TR]
[TD]230 Grain[/TD]
[TD]RE-33[/TD]
[TD]88.5[/TD]
[TD]2704[/TD]
[TD]93.2[/TD]
[TD]2865[/TD]
[TD]96%[/TD]
[/TR]
[/TABLE]
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lapua50XPrivate
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Re: 300 Norma Mag Load Data
02/24/2015 [HR][/HR]
Hi there guys



i loaded up 230 berg in my 300 NM with H1000 84.1 got av 2900 fps very tight group at 100m



though using NORMA brass using 215 Feds I noticed after 1 and 2 firings 2 of the relaoded brass the 215 where loose .



set my die FL sizing die to match as close as possible the gun chamber is it the brass pressures are good fr this load any ideas anyone ?

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MonstaPuggernautXPrivate
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Re: 300 Norma Mag Load Data
03/16/2015 [HR][/HR]
Yahtzee. I'm glad I found this thread.

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jonthompsXFirst Sergeant
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2098 posts this site
Re: 300 Norma Mag Load Data
03/21/2015 [HR][/HR]
Out shooting this AM. Great load that shot in the .3's, but it's pretty hot:

Norma brass

215gr Berger hybrid

90gr N570

FGMM 215 primer

3185fps average over 5 shots w/ slight ejector marks from a 28" Bartlein med palma.



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grunklXPrivate
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Re: 300 Norma Mag Load Data
04/05/2015 [HR][/HR]
I've been looking for a cartridge to use in a long-range target (maybe hunting?) rig I aim to have built, and the 300NM has to be it; good compromise of power, and efficiency.

My hope is to run Nosler's new 210grain LR Accubond projectiles, slick little buggers, with an incredible G7 BC (.366) as an alternative to the Bergers.

Any suggestions for an action? I'm considering Defiance Machine, or the Mauserfield?

The load data you've listed corresponds damn closely with my calculations. Great resource blokes!!!

Grunkl

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jonthompsXFirst Sergeant
Rating: 3.5/5 this site
2098 posts this site
Re: 300 Norma Mag Load Data
04/07/2015 [HR][/HR]
grunkl wrote:
I've been looking for a cartridge to use in a long-range target (maybe hunting?) rig I aim to have built, and the 300NM has to be it; good compromise of power, and efficiency.

My hope is to run Nosler's new 210grain LR Accubond projectiles, slick little buggers, with an incredible G7 BC (.366) as an alternative to the Bergers.

Any suggestions for an action? I'm considering Defiance Machine, or the Mauserfield?

The load data you've listed corresponds damn closely with my calculations. Great resource blokes!!!

Grunkl​

Without running the thread off topic too much, I'd say go with Defiance Deviant action. Word to the wise: Nosler is a little overly enthusiastic about the Accubond LR bullet BC's. Do a Google search regarding the accuracy of their advertised BC's. Litz published some info on it.

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Idahohorseman
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/media.scout.com\/media\/avatars\/1\/2\/Idahohorseman.gif"}[/IMG2]
XGunny Sergeant
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Re: 300 Norma Mag Load Data
04/08/2015 [HR][/HR]
jonthomps wrote:
grunkl wrote:
I've been looking for a cartridge to use in a long-range target (maybe hunting?) rig I aim to have built, and the 300NM has to be it; good compromise of power, and efficiency.

My hope is to run Nosler's new 210grain LR Accubond projectiles, slick little buggers, with an incredible G7 BC (.366) as an alternative to the Bergers.

Any suggestions for an action? I'm considering Defiance Machine, or the Mauserfield?

The load data you've listed corresponds damn closely with my calculations. Great resource blokes!!!

Grunkl​

Without running the thread off topic too much, I'd say go with Defiance Deviant action. Word to the wise: Nosler is a little overly enthusiastic about the Accubond LR bullet BC's. Do a Google search regarding the accuracy of their advertised BC's. Litz published some info on it.

Yesterday, I finished up developing the lo0ad for my BAT Machine actioned long range hunter 300 NM. Wicked accurate and easy to find a load.... Berger 230, Retumbo 86 gr., FGM magnum, 2973 fps out of a 24" suppressed Broughton.... hole in hole accurate at 100M. tomorrow I will stretch it out to a thousand. I am confident it will do well.​



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nnnn16XCorporal
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Re: 300 Norma Mag Load Data
04/26/2015 [HR][/HR]
230 Berger OTM .719

85.4 of H1000

Norma Brass

Fed nonmatch primers

22" barrel

last 100 yd string was 2867, 2867, 2867, 2853, 2862 and they were all in 1 hole

This rifle has been amazing. Consistent 1000yd groups between 5 and 6 inches. I finally found a spot to shoot the mile (1762) and when we finally went the wind was wildly inconsistent but I had 1 of 13 on target. There was zero splash visible so I'm certain it'll be better next time. I'll take one at a mile considering this rifle represents my first try at long range, first try at reloading, first try at cutting a chamber and building a rifle, first try at a bolt gun actually.

I have had a problem with the brass. About one of every 3 cases won't rechamber in the rifle. They will but I have to really fight to get the bolt closed. Any tips or logic that someone could provide would be extremely helpful.



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jonthompsXFirst Sergeant
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2098 posts this site
Re: 300 Norma Mag Load Data
04/27/2015 [HR][/HR]
It seems like brass life is a common complaint of the 300NM. Speed costs. I'm pushing mine pretty hard and it looks like 3 reloads is all she's gonna give me. If Lapua came with brass (or if someone else like RWS made some tough brass) we'd all be in heaven.

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ugsly308XSergeant
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Re: 300 Norma Mag Load Data
06/19/2015 [HR][/HR]nnnn16, have you tried bumping the shoulder back just a tad? I run mine thru a redding body die and havent had any problems with it. Dont force it, you'll end up galling your lugs. You want them to chamber like butter.

Casey
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rowen99XSergeant
Rating: 3.1/5 this site
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Re: 300 Norma Mag Load Data
07/10/2015 [HR][/HR]
83.0 grains of Retumbo
Fed 215M
230 Berger
10Twist
26"
2897 FPS
Verified at 1287 yards

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jonthompsXFirst Sergeant
Rating: 3.5/5 this site
2098 posts this site
Re: 300 Norma Mag Load Data
07/23/2015 [HR][/HR]
88.0gr N570 & 215FGMM
3.600" OAL
215 Berger hybrid
1-10" twist
28" barrel
3150fps avg

What a hammer! No pressure signs and extremely accurate. Shot several sub 1" groups at 356y.

[IMG2=JSON]{"alt":"photo 1719CB23-5A76-422E-AB69-8F9C9656D329_zpsjbe6onib.jpg","data-align":"none","data-size":"full","src":"http:\/\/i1064.photobucket.com\/albums\/u373\/jonthomps\/1719CB23-5A76-422E-AB69-8F9C9656D329_zpsjbe6onib.jpg"}[/IMG2]
Sure would love more info on this lefty rifle. That’s the chassis I wanted for my 300 Norma build, but had to go a different route since they said it couldn’t be done.
 
May 14, 2010
65
0
6
37
Texas
#59
Is anybody using the hornady brass?
I've been running the norma brass but I'm tired of the donut at the bottom of the neck and I'm tired of reaming out the primer holes so I can seat the primer.
Is the hornady stuff any better about this, or do I just need to quit whining?
NNNN
 

jonthomps

Gunny Sergeant
Feb 9, 2009
1,706
0
36
Kansas City
#61
Sure would love more info on this lefty rifle. That’s the chassis I wanted for my 300 Norma build, but had to go a different route since they said it couldn’t be done.
Sold it to a local Kansas City shooter. I bought it from Mile High. I'd give them a call if you're looking for a lefty AI chassis. Or there is a J. Allen lefty chassis for sale at 3rd Gen Shooters Supply.
 

Clearlight

Full Member
Jul 23, 2014
518
105
43
Brisbane Australia
#62
Trentech 300 Norma Mag Improved .

Maddco 9 twist 27 inch
Trentech Taipan custom brake
85 grains of 2217 ( H1000)
CCI 250 primer
215 Berger on lands
3084 fps average
ES. = 4 fps SD = 1.4 / 5 shots .
Group is right on 0.2 for 5 shots .

This is my gunsmiths rifle , I have the same chambering in a Bartlein
9 twist , in an XLR chassis with a Terminator T4 brake . My ES was
similar but only 3 shots as I’m conserving barrel life . The Trentech
Taipan brake is much nicer to shoot than the Terminator T4 : similar
recoil reduction to the T4 with much reduced concussion / blast effect
at the shooters position .

We had issue with hang fires using the BR2 primers we had lying around .
Swapping to 250 Magnum primers eliminated the hang fires and got ES
down from the 30’s to 20 or so .

The biggest benifit to ES and group size was annealing the brass with
the AMP annealer from NZ . This annealer is fantastic : the numbers on
the Labradar ( see photo evidence ) and the group size doesn’t lie . As a
result of this test , I’m annealing every centrefire case every loading , with
the exception of my ancient Enfield which I shoot with irons .

EDIT : there is a very nice node around 89 to 91 grains , but with Norma brass
it is not usable in this application . Trentech Engineering is looking at a system
to re-size 338 Lap Mag brass to 300 Norma Improved : a lot of work but maybe
a solution to run the higher node . Really hoping Petersen Brass can help us
out soon with a better case to work with !
 

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Last edited:

bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#65
Trentech 300 Norma Mag Improved .

Maddco 9 twist 27 inch
Trentech Taipan custom brake
85 grains of 2217 ( H1000)
CCI 250 primer
215 Berger on lands
3084 fps average
ES. = 4 fps SD = 1.4 / 5 shots .
Group is right on 0.2 for 5 shots .

This is my gunsmiths rifle , I have the same chambering in a Bartlein
9 twist , in an XLR chassis with a Terminator T4 brake . My ES was
similar but only 3 shots as I’m conserving barrel life . The Trentech
Taipan brake is much nicer to shoot than the Terminator T4 : similar
recoil reduction to the T4 with much reduced concussion / blast effect
at the shooters position .

We had issue with hang fires using the BR2 primers we had lying around .
Swapping to 250 Magnum primers eliminated the hang fires and got ES
down from the 30’s to 20 or so .

The biggest benifit to ES and group size was annealing the brass with
the AMP annealer from NZ . This annealer is fantastic : the numbers on
the Labradar ( see photo evidence ) and the group size doesn’t lie . As a
result of this test , I’m annealing every centrefire case every loading , with
the exception of my ancient Enfield which I shoot with irons .

EDIT : there is a very nice node around 89 to 91 grains , but with Norma brass
it is not usable in this application . Trentech Engineering is looking at a system
to re-size 338 Lap Mag brass to 300 Norma Improved : a lot of work but maybe
a solution to run the higher node . Really hoping Petersen Brass can help us
out soon with a better case to work with !
Is this 30° IMPROVED?
 
#66
Has anyone used the new hornady brass yet?
I just received a box of 20 from Cabelas (their last box.) my initial impressions are very positive. The rounds are packed in a box/cartridge holder similar to production Ammo allowing the box to hold the loaded rounds, a nice touch. The length of the cases was very uniform throughout the 20 and finish was nice. I ran my mic. around all and they were very uniform. The primer pockets were nice and tight, maybe a bit tighter than the Norma. I basically case sized the neck, barely changing it at all and loaded some 198 Flatlines. All loaded rounds fit in the box nicely. Overall my initial impressions are nothing but positive. I just loaded 60 using virgin Norma brass and would say it compares very favorably.

My Gunsmith just sent me an email noting my rifle has been completed and should ship this week. I have 100 of the ABM 215 and 230 as they were on sale for about the price of brass alone. Almost time for Christmas.
 

WtxShooter

Gun loving dad!
Feb 17, 2017
174
9
18
38
Lubbock, TX
#67
Well I finally got everything in and assembled my 300 NM a few weeks ago and was able to get her out over the Thanksgiving break and fire the first few rounds down range with it. After a 100 yard zero on the scope, immediately took it out to 626 yards and am happy to say it was even better than anticipated! Rifle was laser accurate and recoil was much less than expected. Rifle is honestly a ton of fun to shoot. Obviously not the cheapest round to shoot at all, but well worth the money if you ask me. Definitely eager to get some personal load data on it, but I will plug a friends ammo company and say that the Cold Zero ammo that I have for it is amazing as can be. Highly recommend it for this cartridge for sure! As far as the rifle, it was built by Texas Custom Rifles, and I must say, Travis does excellent work. Here are the specs...

1:10 twist barrel 24"
Stiller Tac 338 action, Lefty of course.
Timney trigger
Cadex Field Tactical chassis
NF ATACR 5-25x56 F1 scope
 

Attachments

Clearlight

Full Member
Jul 23, 2014
518
105
43
Brisbane Australia
#68
Is this 30° IMPROVED?
35 deg bjay . Shoulder starts approx 0.110 further up the case
than standard 300NM . Reamer is my gunsmiths design , ( Trentech
Engineering ) . Super accurate and great ES , just not quite
the velocity with Norma brass . Petersen brass should get us in
the high node , and add up to 100 fps .
 

bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#69
35 deg bjay . Shoulder starts approx 0.110 further up the case
than standard 300NM . Reamer is my gunsmiths design , ( Trentech
Engineering ) . Super accurate and great ES , just not quite
the velocity with Norma brass . Petersen brass should get us in
the high node , and add up to 100 fps .
When Peterson brass going to be avail sir?
 
Dec 19, 2017
3
0
0
#72
Wondering if anyone can provide insight on the 300 NM and 225 ELDMs. The bullets are "jamming" probably close to .200 into the freebore area! I am not having an issue with the 230's. It appears that the 225s are about .0004 bigger in diameter. Here is a link to a video so you can see what I'm talking about. Kind of hard to see but instead of jamming marks that are imprints of the lands this is a ring around the entire bullet. Kind of goes against the idea of the 300 NM if the COAL is 3.475. Any thoughts?
 
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Dec 19, 2017
3
0
0
#74
With a Hornady comparator I was at about 2.823 BTO. My COAL was at 3.595 (since theses bullets are so uniform I use COAL because there are different diameter comparators out there). I'm going to shorten the COAL to 3.475 and see what happens. I'm waiting on a print from the reamer manufacturer to see if that sheds some light on the issue.
 

jonthomps

Gunny Sergeant
Feb 9, 2009
1,706
0
36
Kansas City
#77
I'm over the moon happy and you should be too! Here's why: I opened a recently ordered box of 215gr 300NM ammo from ABM and was shocked to see LAPUA HEADSTAMPED BRASS!! Crossing my fingers this is the beginning of Lapua to offer 300NM brass to the masses.
 

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bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#78
I'm over the moon happy and you should be too! Here's why: I opened a recently ordered box of 215gr 300NM ammo from ABM and was shocked to see LAPUA HEADSTAMPED BRASS!! Crossing my fingers this is the beginning of Lapua to offer 300NM brass to the masses.
O wow... Fire them ammos and sell me brass.. Those things will never get to hawaii :(
 
Likes: Archangel01
Jan 26, 2014
239
15
18
Colorado
#79
Holy crap. This is huge. My emails to Lapua have finally paid off! I just bought a whole case of Norma brass, but I may have to order some ABM ammo just to get my hands on that sweet, sweet Lapua brass.
 
Jan 21, 2009
4
0
0
43
ME, USA
#82
Waiting for a Proof TAC II 300 Norma build (24" proof bull, defiance action)...Here is some factory 215gr ammo. ABM on the left and Nexus on the right. Note the Lapua headstamp on the ABM. Also the ABM is seated out noticeably further. I'm thinking of trying the 180gr elite hunter in this case down the road...any thoughts if this is worthwhile effort?
 

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bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#83
photo84940.jpg
Waiting for a Proof TAC II 300 Norma build (24" proof bull, defiance action)...Here is some factory 215gr ammo. ABM on the left and Nexus on the right. Note the Lapua headstamp on the ABM. Also the ABM is seated out noticeably further. I'm thinking of trying the 180gr elite hunter in this case down the road...any thoughts if this is worthwhile effort?
Im fireformig my brass to 30° for my 24" ive used eld x 212 and tried 215 hybrids.. You know its going be hard to beat them hybrids.. Heres 3 diff powder fireforming with 215
 
Jan 21, 2009
4
0
0
43
ME, USA
#85
Nice build, do you have any 215 velocity data for that Proof 24" barrel and is it 9.25 twist? Interesting...any pics of the fire formed brass? Wondering if quantifiable brass life extension in this cartridge for work involved. What do you think about a 180 in this cartridge?
 

bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#86
Nice build, do you have any 215 velocity data for that Proof 24" barrel and is it 9.25 twist? Interesting...any pics of the fire formed brass? Wondering if quantifiable brass life extension in this cartridge for work involved. What do you think about a 180 in this cartridge?
A little history about this build. It was 26" Proof carbon 9.25 twist with 35° reamer wasnt shooting the way i expected.and this including after forming brass neckturning retumbo h1000 rl33 7977 hybrids 215 230 eld-x 212.
So i called proof and they were nice enough to offer a FREE barrel for a possibility of a bobo barrel.. Monty from proof asked what barrel length twist i wanted BUT the deal was i have to use their prefered smith... I called the deal, if a barrel shooting like this from fireforming with single sd? You bet this will kick ass!
To answer your questions, the twist i choosed is 10 its my hunting rifle and barrel is short no sense gettinf faster twist no plan using 230s anyway i cant speed it up woth short barrel. And besides i got two rifle used same reamer one is 29.5" barrel with 9 twist ryan pierce put together as my target.. Just got it last week stull havent tried it.
Im pushing 215 3057fps with retumbo 87 gr 2975 with h1000 86gr and none of these are overpressured. Im sure with formed brass same charge will give 3100 easy after barrel settled.. 180s will fly!!
Im not fan of super fps i dont like anythinh faster than 3100 lol barrel too expensive..
3050 is my goal
20171105_174617-1.jpg
 
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ch11x

Private
Jan 21, 2009
4
0
0
43
ME, USA
#88
A little history about this build. It was 26" Proof carbon 9.25 twist with 35° reamer wasnt shooting the way i expected.and this including after forming brass neckturning retumbo h1000 rl33 7977 hybrids 215 230 eld-x 212.
So i called proof and they were nice enough to offer a FREE barrel for a possibility of a bobo barrel.. Monty from proof asked what barrel length twist i wanted BUT the deal was i have to use their prefered smith... I called the deal, if a barrel shooting like this from fireforming with single sd? You bet this will kick ass!
To answer your questions, the twist i choosed is 10 its my hunting rifle and barrel is short no sense gettinf faster twist no plan using 230s anyway i cant speed it up woth short barrel. And besides i got two rifle used same reamer one is 29.5" barrel with 9 twist ryan pierce put together as my target.. Just got it last week stull havent tried it.
Im pushing 215 3057fps with retumbo 87 gr 2975 with h1000 86gr and none of these are overpressured. Im sure with formed brass same charge will give 3100 easy after barrel settled.. 180s will fly!!
Im not fan of super fps i dont like anythinh faster than 3100 lol barrel too expensive..
3050 is my goal
I'd be happy with those velocities and performance out of my 24" similar setup...though it 9.25 vs 10. The info from Proof for chamber is they used JGS 3818 CIP reamer with 0.215 freebore. Probably optimized for 230 but they say it's good from 208 up to 230...I'll be shooting 215 and lighter mainly.

I had Proof thread 3/4-24 muzzle vice 5/8 for Thunder Beast ultra-5 CB brake/adapter...awaiting ATF for this.

Hindsight I wish I had gone sendero vice bull (1.2") profile since this is more hunting oriented. Originally I spec'd 26" then changed to 24". The TB adapter may look a bit off without the can but not too concerned. Reloading will be inevitable down the road but leaning on A. McCourt initially for loads.

 

Siso

Sergeant
Oct 22, 2002
140
0
16
WI
#89
What is the best freebore to shoot 215s vs 230 Bergers? Is it possible to shoot both and keep above the neck shoulder junction? It will be from an AXMC so no worry about COAL.
 

bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#90
What is the best freebore to shoot 215s vs 230 Bergers? Is it possible to shoot both and keep above the neck shoulder junction? It will be from an AXMC so no worry about COAL.
My 35° had 235 freebore works well with 215 and 230 wont pass the max oal 3.625 to work with none cip aics. Latest reamer 30° improved got 252 freebore plan was for 230s on my target 29.5" and 212 ELD-X for the hunting gun. Oal for 215 and 230 is 3.652 touching land. I load them 215 hyb 3.625 to clear aics internal and its hammer... Theres no perfect freebore for hybrids since they dont care being jump even up to .100 ive seen people doing 280-300fb with great results..
 

bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#91
I'd be happy with those velocities and performance out of my 24" similar setup...though it 9.25 vs 10. The info from Proof for chamber is they used JGS 3818 CIP reamer with 0.215 freebore. Probably optimized for 230 but they say it's good from 208 up to 230...I'll be shooting 215 and lighter mainly.

I had Proof thread 3/4-24 muzzle vice 5/8 for Thunder Beast ultra-5 CB brake/adapter...awaiting ATF for this.

Hindsight I wish I had gone sendero vice bull (1.2") profile since this is more hunting oriented. Originally I spec'd 26" then changed to 24". The TB adapter may look a bit off without the can but not too concerned. Reloading will be inevitable down the road but leaning on A. McCourt initially for loads.
I had the bull sendero 26" 9.25twist..it was recommended for a bigger magnum.. But this 24" is a standard sendero 1.20 with 10 twist works well and noticeably lighter
 
Sep 6, 2006
1,918
126
63
Southern California
#92
I'd be happy with those velocities and performance out of my 24" similar setup...though it 9.25 vs 10. The info from Proof for chamber is they used JGS 3818 CIP reamer with 0.215 freebore. Probably optimized for 230 but they say it's good from 208 up to 230...I'll be shooting 215 and lighter mainly.

I had Proof thread 3/4-24 muzzle vice 5/8 for Thunder Beast ultra-5 CB brake/adapter...awaiting ATF for this.

Hindsight I wish I had gone sendero vice bull (1.2") profile since this is more hunting oriented. Originally I spec'd 26" then changed to 24". The TB adapter may look a bit off without the can but not too concerned. Reloading will be inevitable down the road but leaning on A. McCourt initially for loads.

My reamer is .112 for the Warner bullets, which ended up not working for me. Last night I throated it to .250 fb, and my numbers now are about identical to bjayÂ’s.

From my math, a .185 fb will put the 230 bearing surface right at neck/shoulder. With .215, youll be .030 over with the 230. The 215 hyb is is exactly .090 shorter in the bearing surface(nose and boat tail is identical), so the bearing surface will be .120 above. The norma neck is .316 long, so .196 worth of neck grabbing the bullet at “touching”. If you jump, that number will go up of course.



.250 freebore.
208 eld on the left. On the right is a 230 straddled by a 215 and 230. The seated bullets are at the touching dimension.
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/uploads.tapatalk-cdn.com\/20180102\/4e4c957bf5ff0b5e90ca210c6e7af0f2.jpg"}[/IMG2]

AXMC magazine
Oal: 215/230 3.63””
208 3.59””
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/uploads.tapatalk-cdn.com\/20180103\/e93a7687d3a79bfafe0273d200d1623d.jpg"}[/IMG2]
 
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bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#93
My reamer is .112 for the Warner bullets, which ended up not working for me. Last night I throated it to .250 fb, and my numbers now are about identical to bjayÂ’s.

From my math, a .185 fb will put the 230 bearing surface right at neck/shoulder. With .215, you’ll be .030 over with the 230. The 215 hyb is is exactly .090 shorter in the bearing surface(nose and boat tail is identical), so the bearing surface will be .120 above. The norma neck is .316 long, so .196 worth of neck grabbing the bullet at “touching”. If you jump, that number will go up of course.



.250 freebore.
208 eld on the left. On the right is a 230 straddled by a 215 and 230. The seated bullets are at the touching dimension.


AXMC magazine
Oal 215/230 3.63
208 3.59
Its PUUUUUUUURRRRRRRRFECCCCT!!!!
 

Siso

Sergeant
Oct 22, 2002
140
0
16
WI
#94
My main concern was getting the 215/230gr berger bearing surface above the neck shoulder junction. I'm having my barrel spun up at GAP and their reamer has a .215 freebore, however they didn't know where that put the bullet in relation to the neck shoulder junction. They also said I could send in some dummy rounds and they could set the freebore off that. Just eye balling it with a 230 that puts my COAL around 3.604". Sounds like I should just be able to use their reamer with the .215 freebore and be fine.

Thanks for the help bjay and supersubes.
 

bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#95
My main concern was getting the 215/230gr berger bearing surface above the neck shoulder junction. I'm having my barrel spun up at GAP and their reamer has a .215 freebore, however they didn't know where that put the bullet in relation to the neck shoulder junction. They also said I could send in some dummy rounds and they could set the freebore off that. Just eye balling it with a 230 that puts my COAL around 3.604". Sounds like I should just be able to use their reamer with the .215 freebore and be fine.

Thanks for the help bjay and supersubes.
Ash caleb from GAP also re doing my freebore for my 6.5x47 they put together for me... They also suggested me to send few dummy round on what oal i want to use and what jump from land i want from those dummy rounds
I think the 215 freebore is ok but IMO its more for 210vld and 215hyb i had 210fb once and tried 230s the tail junction is below shoulder.. When they still putting together my 6.5x47 they offered me the chance to extend freebore no charge now that i sent it back im getting charge 100.00 bcoz barrel need to be remove from action to get re troated.. If you really wanna add freebore i suggest do it NOW..
 

bjay

Private
Oct 19, 2009
2,744
48
48
Aloha state HI
#98
Mag feed from AXMC
Axmc has slightly longer internal oal vs aics IMO i would do a 3.615-3620 average AOAL and ask tell GAP youll be using that OAL and you want a .020 jump from land. This will give options to use 215/230 hyb no problem and also 208/212 or even 220 hornady
 
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Gilly

On Target
Feb 27, 2009
472
18
18
Coloarado
#99
Anyone tried the 198 flatlines in 300 norma yet? Just got an axmc and thinking about a 9 twist to run the 198 just wondered if its been tried yet? Would likely run the 215 or 230 berger as a more frequent load but a 198 out of this thing at 3200 on paper looks to be outstanding for extending range out further.
 
Sep 6, 2006
1,918
126
63
Southern California
Anyone tried the 198 flatlines in 300 norma yet? Just got an axmc and thinking about a 9 twist to run the 198 just wondered if its been tried yet? Would likely run the 215 or 230 berger as a more frequent load but a 198 out of this thing at 3200 on paper looks to be outstanding for extending range out further.
The difference in freebore requirements between the Warner and the others is huge, so you won’t ideally be able to run those three bullets in the same chamber. The Warner reamer is .112 freebore, and the 215/230 needs somewhere between .215 (saami) and .300. I had zero luck with the Warner 198 in my my gun and just re-throated my barrel to accomodate the heavy jacketed bullets. My barrel is an 8 twist Bartlein. Best I could do with the Warner 198 was about 5 moa at 640 yds. Bummer, I was really hoping they’d work. I switched to 208 eld and 215 hyb just to try and diagnose the problem. Even though they were seated way down past the neck in the Warner chamber, groups dropped to sub half minute at the same distance.
 
Likes: excess