.300wm - .300wsm

Jan 10, 2009
803
9
18
Galax, VA
Finally found my load:
Savage HS 300WM 24" 1-10"
77.0 H1000
208 Hornady HPBT
3.485 oal
GM210M
Rem brass
.3 @ 100 five shots

But,I only had a handful of Rem brass and I have 150 pcs. of Federal inbound so I guess the load works not over after all. I will be looking for some Rem brass or working up in the Feds.
 

sakobob

OAF in training
Aug 7, 2012
497
0
16
ohio
Finally found my load:
Savage HS 300WM 24" 1-10"
77.0 H1000
208 Hornady HPBT
3.485 oal
GM210M
Rem brass
.3 @ 100 five shots

But,I only had a handful of Rem brass and I have 150 pcs. of Federal inbound so I guess the load works not over after all. I will be looking for some Rem brass or working up in the Feds.
start about 1.5 grains less with the federal brass, should get you real close to what you have now.
 

Aimsmall55

Gunny Sergeant
Oct 23, 2010
2,633
3
38
Meridian, MS
77.0 H1000, 215 Berger , RP brass, 215m primer, 2.942 to ogive, 2947 fps average at 46 degrees. Rifle is a trued Remington action with a 30" Broughton 5c in an AICS
It is a solid 1/2 moa load
 
Nov 4, 2012
123
0
0
35
Greensburg, KY
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: nolo263</div><div class="ubbcode-body">300wsm loads
fn spr 24 in. barrel

Win. case prepped
190 gr. berger kissing the lands
67.0 H-4350
210m primer

3000 fps out of my rifle and sub .5moa out to 500m this is my hunting load.

work up to this because this is a very hot load.. </div></div>


I am working out a new load out of my 300wsm
win case
210 primer
>>> gr. of 4350 (dont want to post weight yet due to poss. boom)
155 scenar
= 3580 out of my rifle

No pressure signs whatsoever. I am going to try varget out next due to having to use way to much 4350 in the case and it was causing seating problem. what do you guys think about the varget??
How did the Charger test go? What twist is your barrel? 10 or 12. I have a fn pbr, I'm wanting to run 155 to 3200 for competition speed. Have you considered h1000?
 

Aimsmall55

Gunny Sergeant
Oct 23, 2010
2,633
3
38
Meridian, MS
Found a great AICS mag friendly load.
230 OTM Berger
76.3 Retumbo
215m
Norma brass
Loaded at 3.625 coal. I can't remember the ogive
Shoots bug holes at 2890 fps. Killed a deer at 656 yards with it a few weeks ago and she was DRT. REALLY GOOD LOAD
 
Sep 26, 2013
33
0
0
Spring, texas
Hi gentlemen , I am so new , I did some ladder text , from 59gr to 62gr hybrid 100 v , i did found little luck , 200 yards , 1 1/2 inch , from 300 wm , 110 ba , 1x10 twist
Fc brass
Tula mag rifle prime
60.5gr hybrid 100v
Lapua 170 gr fmj
3.365/3.37 aol

Fc brass
Tula mag rifle prime
61.5 gr hybrid 100 v
208 a max
3.555/3.565 aol

I had the hogdon book ,bought @ midway shooter supply , it had hybrid h 100 v , charges , I city man very limit range time & so new with this hide , if these could help , I still work for better load , tandvu
 

half

Private
May 12, 2011
91
0
6
45
western south dakota
Finally found a load for 210 smk's.
Norma brass
CCI mag prime
77.4 gr Retumbo
210 smk
jumped 0.0010 / 2.865 ogive
2930 fps

During load development I shot a ladder at 600 yards to determine my powder charge, then I loaded rounds to find the right seating depth. I loaded 3, 5 shot groups. The first group was jammed .0010, it shot about 2 inches. The second group was just touching, it shot about 1 inch. The third group was jumped .0010, it shot about .5 inch. Have you guys seen that big of a difference just with seating depth?
 
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Aimsmall55

Gunny Sergeant
Oct 23, 2010
2,633
3
38
Meridian, MS
Finally found a load for 210 smk's.
Norma brass
CCI mag prime
77.4 gr Retumbo
210 smk
jumped 0.0010 / 2.865 ogive
2930 fps

During load development I shot a ladder at 600 yards to determine my powder charge, then I loaded rounds to find the right seating depth. I loaded 3, 5 shot groups. The first group was jammed .0010, it shot about 2 inches. The second group was just touching, it shot about 1 inch. The third group was jumped .0010, it shot about .5 inch. Have you guys seen that big of a difference just with seating depth?

I have tinkered with them and found its basically a 210 Berger vld's twin brother. They shot the best at or near the lands with me running h1000. The bearing surface is pretty far back on those bullets
 
Jan 18, 2014
2
0
0
My .300 WM load:

Hornady 208 A-max
Win Brass
CCI Mag primer
76.8gr H1000
3.648 COAL

Pulled the 5th shot a little unfortunately, but this was my first 5 shot group with this charge. Still very pleased with it.
 

Toto

Private
Mar 26, 2014
10
0
0
Jacksboro, TX
I am loading 208 amax over RL-22 into FC brass. I have noticed that federal brass is heavier than others and I am assuming this means less volume inside. With a recent test I was loading per Hornadys data and getting velocities above what the book indicates. Worked up to the max load with this result.

72.4gr RL-22
215M
FC 07 Brass
208gr AMax
COL 3.43"

5 shot group with an avg velocity of 3059fps
 

Toto

Private
Mar 26, 2014
10
0
0
Jacksboro, TX
Ref the post above: trying to slow these down a bit and it's not working out. Worked my way down to 71.5gr RL22 and we are still above 3000fps. Causing heavy bolt lift and a few fail to extract. Reading my books it says lower end charges can lead to over pressure. Not sure I understand that but also not sure what to try next.

Sent from my SAMSUNG-SM-N900A using Tapatalk
 

WB300

Sergeant
Jan 15, 2011
318
6
18
48
GA
Para
I had good luck with 4831sc with the 178s.

I'm just starting to work up a load with Black Hills Brass (Win), H4831, and the 178 Amax. Care to share your findings? Of course I will work up slowly, but it's good to have a reference point.

Or does anyone else have a decent load for this combo.

Bill
 
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Feb 16, 2014
13
0
1
One more month and I should have all my Federal brass here. Looking to build 208 AMAX & 190 SMK loads with IMR 7828SSC. With the "un" availability of H1000 I'm leaning towards this to be "the" powder for me. Savage 24inch HS-Precision platform.
 

Aimsmall55

Gunny Sergeant
Oct 23, 2010
2,633
3
38
Meridian, MS
Anyone use Hodgdons Retumbo Magnum rifle powder?

Sent from my SPH-L710 using Tapatalk

Been having really good luck with Retumbo and the 230 bergers as well as the 215's. I've got a 30" Broughton 5c and it gives me about 70 to 100 fps more than h1000. Very good powder for the HEAVIES.
 
Feb 12, 2012
14
0
0
38
whats every one's primer of choice? i have a long range shooting school coming up in a september that i need 500 rounds of mach grade. i will be loading hornaday brass with retumbo and 208gr A-Max's just haven't found much on what to light it with. i haven't loaded for precession long range just gas guns to this point. not looking to get it dialed in 100% as I'm no where that good. just going to make an attempt at a ladder test then plan to load the needed 500rds as close to exact shell to shell as i can.
 

half

Private
May 12, 2011
91
0
6
45
western south dakota
whats every one's primer of choice? i have a long range shooting school coming up in a september that i need 500 rounds of mach grade. i will be loading hornaday brass with retumbo and 208gr A-Max's just haven't found much on what to light it with. i haven't loaded for precession long range just gas guns to this point. not looking to get it dialed in 100% as I'm no where that good. just going to make an attempt at a ladder test then plan to load the needed 500rds as close to exact shell to shell as i can.
I did an unscientific test of CCI 250, WLRM, and rem 9 1/2. I loaded 3 rounds with each primer and shot groups at 100 yards. The CCI's grouped the best, so that's what I use.
 
Feb 7, 2013
1,857
383
83
The West
I did an unscientific test of CCI 250, WLRM, and rem 9 1/2. I loaded 3 rounds with each primer and shot groups at 100 yards. The CCI's grouped the best, so that's what I use.
Sorry to be a opps your right it is antidotal at best -- look at the ES at 100 and how little effect it has; now take that max ES out to ELR distances and it might be unusable --

Without ES/SD/ladders a good group at 100 is useful only to those interested in ultra close range-


Sent from my iPhone using Tapatalk
 
Nov 10, 2010
2,755
1,049
113
UT
Ref the post above: trying to slow these down a bit and it's not working out. Worked my way down to 71.5gr RL22 and we are still above 3000fps. Causing heavy bolt lift and a few fail to extract. Reading my books it says lower end charges can lead to over pressure. Not sure I understand that but also not sure what to try next.

Sent from my SAMSUNG-SM-N900A using Tapatalk
Some powders are just that way. H110 and Win296 (magnum pistol powders) are almost always compressed loads. Anything less than 95% case fill can be dangerous with some powders. On the H110 and Win296 there is no "starting load" there is just "the load" backing these powders down more than 2% is not advised.
 

jvr

Private
Jun 5, 2011
92
1
8
55
Just a quick THANKS for all the posts on 300 wm.

I went with this as starting point from reading posts. then up and down with powder. 76.8 perfect!

76.8 h1000
208 amax
new federal brass and primer
savage law enforcement / ps stock / 1-10 twist
3.6 oal
.40 moa (would have been better but my skills are very rusty)
 

ArmyJerry

Staff Sergeant
Nov 22, 2012
4,838
2,611
113
54
How far off the lands are you seating the 208 HPBT? I think I have the load at 20 off the lands, 208 HPBT being pushed by 77 H1000. Its under 3/4 inch but I need to egt it down to half moa or better for 1k shooting.
 
Feb 16, 2014
13
0
1
I'm assuming this is the FCP-HS Precision platform with the 24" barrel. I had some initial "good" results with IMR 7828SSC but they were not
consistent with outings. And now I can see H1000 coming back in stock, at least 1lb'ers that is. I went out once with 70 some rounds and the groups
tightened up considerably, even with a warm barrel. I got best from 75 and 76, and for some reason they opened up at 75.5. So I now have 40 ladder loads ready 74.8, 75,75.2, 75.5, 75.8, 76, 76.2, 76.5. I should make some for 76.8 but the original 77 opened up a bit. My AOL is 3.468 and am still having issues where the AMAX tip is getting nicked in the mag. Have you seen this or have you just been doing single loads and no mag? I'm also using once fired Federal brass with Federal Magnum primers. H1000R175.jpg H1000R176.jpg


Just a quick THANKS for all the posts on 300 wm.

I went with this as starting point from reading posts. then up and down with powder. 76.8 perfect!

76.8 h1000
208 amax
new federal brass and primer
savage law enforcement / ps stock / 1-10 twist
3.6 oal
.40 moa (would have been better but my skills are very rusty)
 

ArmyJerry

Staff Sergeant
Nov 22, 2012
4,838
2,611
113
54
have to try this,

.300WM-Savage action, 26" Criterion barrel, 1/10 twist, bedded Manners stock and 3.850" length Accurate-Mag bottom metal

Winchester brass, headspaced .002" off of shoulder, annealed at 2 firings, .002" neck tension
Fed 215 primers
76.8 gr. H1000 powder
Hornady 208 Amax bullets seated .020 off of the lands-3.600" O.A.L.
2960 fps avg.- confirmed at 1150 yards-no over pressure signs and no powder compression at 3.600"
.4" groups at 100 yards.

The 208 Amax absolutely did not like to be seated at my factory mag length of 3.45"-my groups were over 1.5" at 100. .010" off the lands and groups opened back up to .75". .020" off the lands is the sweet spot on this gun with the 208 Amax. I have some 210 Berger bullets to try next.
 

sakobob

OAF in training
Aug 7, 2012
497
0
16
ohio
300 Win mag
1-9 twist R5 fluted27" Benchmark bbl
Berger 230gr hybrid
81gr RL33 2925 fps
Fed 215 primer
1.5" ctc 580 yards
am i reading that velocity correct, wow! would like to know what brass and elevation this was done at, it has peaked my interest:)
also what was your start load?
 
Jul 21, 2013
9
0
0
am i reading that velocity correct, wow! would like to know what brass and elevation this was done at, it has peaked my interest:)
also what was your start load?
The cases are once fired Mil Spec Federals and they are loaded to 3.6" (.010" off the lands), Right now I'm working on magazine length loads at 3.90"

Starting loads were 78gr's and I went up to 82gr's. Elevation for load development was at 200' The group quoted was shot at 4300' with a DA of 6500'
(I live at the foot hills of the cascades so elevation changes are always monitored with a Kestrel )

This is the load data sent to me from Berger:

Thank you for getting with us at Berger Bullets. We are including our latest update for use with your .300 Winchester Magnum.

.300 Winchester Magnum
Bullet Powder Start Load Approximate Start Velocity Max Load Approximate Max Velocity Fill Ratio
230 Grain RE-33 73.0 2446 81.0 2769 103.0%


Please do not hesitate to get back with us if we can be of further assistance for you.


Kind Regards,
Berger Bullets Technical Support Team
techsupport@bergerbullets.com


4275 N. Palm Street
Fullerton, CA 92835

Tech Line: 714.447.5424
Fax: 714.441.7201
 
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Aimsmall55

Gunny Sergeant
Oct 23, 2010
2,633
3
38
Meridian, MS
230 Berger OTM , virgin Winchester brass, 76.3 Retumbo , fgm215 , 2895 fps. .1 moa or a tad less. Shot from a 30" Broughton 5c 1:10. Shoots very well out to 1100. Haven't stretched this load farther yet but I did shoot some 215's out to 1330 yards and only needed 10.2 mils to hit. It's a screamer...
 
Mar 28, 2013
228
0
0
NW Louisiana
I'm thinking of 75.3-76.8, in .3 increments. I wanna shoot 3each , which is 6 loads for 18 shots. I feel like I may miss a node low or high. Should I just shoot a ladder test at say 200 yds, from 74-77, in .3 increments? Seems like a wide range.
 

sakobob

OAF in training
Aug 7, 2012
497
0
16
ohio
I'm thinking of 75.3-76.8, in .3 increments. I wanna shoot 3each , which is 6 loads for 18 shots. I feel like I may miss a node low or high. Should I just shoot a ladder test at say 200 yds, from 74-77, in .3 increments? Seems like a wide range.
more info on what your loading.
 
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