6.5 Creedmoor

Bryan marks

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Oct 16, 2018
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I would first find your rifles max pressure then work down from there you will find like many other people you will find a node on the upper end. you might find one around 41.5 but might not be getting the velocities your looking for or find a better node higher up. Load with caution your max in early spring will be beyond max in the hot summer depending on where your at.
. Just a thought
 

Bryan marks

Private
Minuteman
Oct 16, 2018
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PURPOSE: Duplicate a factory load velocity for the Hornady 147g ELD Match Bullet with tighter SD/ES. Per magnetospeed it was traveling at only 2600, SD 16, ES 35.
View attachment 7046396

Brass: Prime 6.5 Creedmoor
Primer: Federal GM210M (Large Rifle Match)
Bullet: Hornady 147g ELD Match
COAL: 2.825 (.025" off the lands)
Neck Tension: .003"
Dies: Lee Precision FL sizing die, Collet Neck sizing die, Dead Length seating die.

Process: deprime (Lee Classic Turret Press), tumble, clean, full length size (Lee Classic Turret Press), trim, anneal (salt bath), avoid burning fingers, drop in water, tumble dry, clean, neck size, final prep (chamfer, etc), prime on press (Lee Classic Cast Press), charge with powder, seat bullet (Lee Classic Cast Press)

Rifle: Ruger Precision Rifle
Barrel: Proof Research stainless, M24 Profile, 24", 1:8 twist. Headspace set to SAAMI Minimum +.003" per Proof Research recommendation.
Brake: APA Little Bastard - Jam nut style.

Location: Burro Canyon, Azusa, CA (1 hour drive from my residence thanks to traffic on the westbound 210 freeway!)
Position: Bench with bipod and rear bag.
Time: 1404 hours (2:04 PM)
Conditions via Kestrel: Temp: 65f, Baro: 27.94 inHg, Humidity: 23%, Density Altitude: 2750
WIND: from 10-11 o'clock, 1/2-3/4 value, variable 5-15 MPH (enough to make my target flop around a bit, made it spicy!)
Distance: 101.3 yards via laser rangefinder.
Chronograph: Magnetospeed Sporter

Load #1:

Powder:

Reloder 17: 40.5 grains
Velocity: 2682
SD: 3
ES: 6

Group size: .292" Center to center:
View attachment 7046392


Load #2:

Powder H4350 41.4 grains

Velocity: 2701
SD: 5
ES: 13
5 shots

Forgot picture, sorry. It was similar sized hole, no larger than .4" Center to center probably thanks to the wind moving my target around. 😂😂😋

Outcome: SUCCESS!! 😎 This is the best load development result series I have ever done since I started reloading about a decade ago!! I am so relieved I can now just load a bunch of either one of these loads and let it rip!
Nice man. I’m out in Palmdale. I’ve never shot at burros
 
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jb41291

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Jul 24, 2017
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I would first find your rifles max pressure then work down from there you will find like many other people you will find a node on the upper end. you might find one around 41.5 but might not be getting the velocities your looking for or find a better node higher up. Load with caution your max in early spring will be beyond max in the hot summer depending on where your at.
. Just a thought
I thank you for your reply. I am being overly cautious as i dont see alot of publication on my components so just trying to find a starting point or a max and go from there. Thats a great point i did not think temp change. I am in colorado and weather change is coming.
 

DMP

Mike
Minuteman
Aug 10, 2018
23
3
6
Northern Utah
Would anyone have any recommendations for min starting load for an ocw test. I have been looking for any references and have come up unsuccessful. I was thinking of starting at 39 grains and working up in increments of .4.

I will be using:
130 eld-m
Cci 450 primers
Rl16
Starline srp
I would do my steps up in .2 great. .4 is a little steep.
 

spoe

Private
Minuteman
Mar 7, 2018
11
5
6
Dix Hills, NY
Testing Alpha Brass - definitely lower case volume when compared to Hornady.

Remington 700 22" bbl. in a KRG Bravo, 40° conditions
142g Sierra MatchKings
40.8g H4350
Once fired Alpha Brass (LPP)
CCI BR-2
2697 fps
 

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palmettoman

Private
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Apr 26, 2011
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Florida
I think I finally got my load -
41.7 H4350
140 SMK
Federal GMM A/R primers
Starline SRP brass

Had really good results seating .020 off the lands. I'll play with the seating depth and be sure to post some pics of my "best groups". ;)

Who am I kidding...I'll probably forget...
 

Lunchbox27

Sergeant of the Hide
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Mar 23, 2017
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Proof Research Stainless 24” (Suppressed)
140 Hornady HPBT match
Hornady Brass
CCI 200
40.6 Reloader 16

Shot some really good groups throughout this testing. Pressure signs at 41.8 grains (2945 fps). Proof makes an accurate, fast barrel.

3/8” or less groups @2797fps (8.7SD)
 

pbatesaz

Online Training Member
Online Training Access
Minuteman
Jul 12, 2018
33
15
12
Phoenix, AZ and Cimarron, CO
Would anyone have any recommendations for min starting load for an ocw test. I have been looking for any references and have come up unsuccessful. I was thinking of starting at 39 grains and working up in increments of .4.

I will be using:
130 eld-m
Cci 450 primers
Rl16
Starline srp
When working up my load I started with 39 and went up to 42.5 in .5 increments, then refined to .2 increments to end up at 41.8. So I think your plan is a good one. Good luck.
 
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jb41291

Sergeant of the Hide
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When working up my load I started with 39 and went up to 42.5 in .5 increments, then refined to .2 increments to end up at 41.8. So I think your plan is a good one. Good luck.
after a little more research i too will start at 39 grains. When doing course increments did you find a decent node?
 

Bryan marks

Private
Minuteman
Oct 16, 2018
32
16
12
Proof Research Stainless 24” (Suppressed)
140 Hornady HPBT match
Hornady Brass
CCI 200
40.6 Reloader 16

Shot some really good groups throughout this testing. Pressure signs at 41.8 grains (2945 fps). Proof makes an accurate, fast barrel.

3/8” or less groups @2797fps (8.7SD)
Ya I never get how people can load 43 plus grains and have no pressure signs I saw signs at 41.8 too. Howa 1500 6.5 creed. Stock heavy barrel.
 

Lunchbox27

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Ya I never get how people can load 43 plus grains and have no pressure signs I saw signs at 41.8 too. Howa 1500 6.5 creed. Stock heavy barrel.
I was able to run 42.4 in my factory Tikka barrel. But, it had a long throat.
 

dntworry

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Jul 5, 2018
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Tried a OCW with Berger 140 hybrids loaded to 2.950 (max mag length for mags without binder plates) very long throat on my Tikka CTR that's still a ~.050 jump to riflings. Did not see any pressure signs wondering about trying higher loads, what do you guys think?
 

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flyright

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Feb 14, 2017
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Looks round - no vertical stringing - easier to tell with 5 round groups, though and a couple through the same hole. That powder charge should be mid node and easy on the brass and barrel. Just my .02.
 

Farmerdanss

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Jun 26, 2018
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Tried a OCW with Berger 140 hybrids loaded to 2.950 (max mag length for mags without binder plates) very long throat on my Tikka CTR that's still a ~.050 jump to riflings. Did not see any pressure signs wondering about trying higher loads, what do you guys think?
43.5 Grains with no pressure signs? wow. Any idea of speed? Just wondering..
 

dntworry

Private
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Jul 5, 2018
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43.5 Grains with no pressure signs? wow. Any idea of speed? Just wondering..
Do not have a worthwhile chronograph at the moment so no way to tell

I feel like it is related to the extreme length they are pulled out, I actually did some more testing again today and pushed it up to 44gr and no sticky bolt lift, no extractor shine, no flattened primers, could not identify anything representing a pressure sign.

Based on previous experience my old load was 41.6gr with a 147ELDM and with the stock 24" CTR only got 2675fps
 

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rap36case

Private
Minuteman
Jun 21, 2017
17
5
6
In my opinion it’s the Hornady brass. I know lots of people get good results with it but that’s not my experience. From what I see there I’d just load 42.4gr and go shoot it.
I like the plot of muzzle velocity as a function of powder mass. I have seen a stair-step graph for 130gr Berger OTM AR hybrid. I am wondering if seating depth ha
I did a ladder load test for my RPR using 140 Gr ELD-M and 41.5 gr - 43.3 gr of H4350. It looks like there is a node between 42.5 and 42.9.
View attachment 7002958
Does this look correct or did a screw something up?

Cheers,
Conan
I like the plot of muzzle velocity as a function of powder mass. I have seen a stair-step graph for 130gr Berger OTM AR hybrid. I am wondering if seating depth has an effect on the nodes as well. I have gone to magazine depth for precision shooting in the field. My load is 130OTM, Peterson Cartridge small primer, 43.2gr H4350, CCI BR4 small primer, COAL 2.815. I will shoot a couple more ladders with 5 round groups to verify powder charge after optimizing seating depth for magazine.
 

Stonewall1846

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Feb 4, 2019
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130 Gr Berger Hunting VLD

24" Criterion Barrel, Remington Blue Printed Action
Lapua small primer brass
CCI BR4 primer
43.6 Gr H 4350

Muzzle Velocity 2930 (Velocity node @ 43.5-43.7, 2927-2932)

3/4" vertical spread at 300yds
 

Lunchbox27

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Do not have a worthwhile chronograph at the moment so no way to tell

I feel like it is related to the extreme length they are pulled out, I actually did some more testing again today and pushed it up to 44gr and no sticky bolt lift, no extractor shine, no flattened primers, could not identify anything representing a pressure sign.

Based on previous experience my old load was 41.6gr with a 147ELDM and with the stock 24" CTR only got 2675fps
Thats actually pretty good for a tikka barrel. These barrels are slow, compared to other factory options at the same length. I rebarreled for this reason. That said, your 42.3 load wont hold you back. Just will need a little more at distance with your wind calls than others.
 

rap36case

Private
Minuteman
Jun 21, 2017
17
5
6
130 Gr Berger Hunting VLD

24" Criterion Barrel, Remington Blue Printed Action
Lapua small primer brass
CCI BR4 primer
43.6 Gr H 4350

Muzzle Velocity 2930 (Velocity node @ 43.5-43.7, 2927-2932)

3/4" vertical spread at 300yds
Thank you! that is good information to know.
 

NamibHunter

Private
Minuteman
Dec 26, 2018
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Has anyone tried the Hornady 140 hpbt compared to the eld-m’s? They run almost $10 a box cheaper here.
Yes: Bought a box to use it for fire forming because they are cheap. Used some WCxxx surplus powder made 30 years ago. Shot remarkably well at 400 yards on steel. I recall a few 1.5” to 2.5” three shot groups. Low wind. Kept the speed low, around 2500 fps. No load development, and loaded to book length. Surprised me.

BC is not great but bullet dimensions must be super consistent. Shape reminds me of Sierra 142 SMK.

I would say try it anyway.
 

Lunchbox27

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Yes: Bought a box to use it for fire forming because they are cheap. Used some WCxxx surplus powder made 30 years ago. Shot remarkably well at 400 yards on steel. I recall a few 1.5” to 2.5” three shot groups. Low wind. Kept the speed low, around 2500 fps. No load development, and loaded to book length. Surprised me.

BC is not great but bullet dimensions must be super consistent. Shape reminds me of Sierra 142 SMK.

I would say try it anyway.
I agree, and the 140 hpbt is all i shoot and have shot through 3 different barrels. I dont compete, so they are great for banging steel at distance... just a little more wind hold. Great bullets for the price.

140 hpbt BC : .580 G1
140 eld-m BC : .646 G1
 

Bmoore0062

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So feel pretty confident my new 6.5 barrel is broken in and it’s tome to really work a load up for it. Shooting 140 ELD-M. Started with a generic mid of the road load, at 41 grains of H4350. Groups decent and averaging 2740fps, no signs of pressure.

Question is for my ladder test should I start at 41 grains or bump it back further. In recent post saw guys starting all the way back at 39, but rarely see any loads under 41 grains. Plan is to increase by .2. Just don’t want to waste time, money, and more importantly wear on the barrel.
 
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canezach

House of Chingasos
Belligerents
Apr 18, 2014
1,091
211
169
Colorado
Proof Research Stainless 24” (Suppressed)
140 Hornady HPBT match
Hornady Brass
CCI 200
40.6 Reloader 16

Shot some really good groups throughout this testing. Pressure signs at 41.8 grains (2945 fps). Proof makes an accurate, fast barrel.

3/8” or less groups @2797fps (8.7SD)
Just curious, but what pressure signs were you seeing? Flattening of the primer, or are we talking sticky bolt/extractor swipes? The only reason I'm asking is 41.8 grains of RL16 in Hornady brass is 0.1 grain lower than my match load with those same components, which put me in the low to mid 2800s. I would have to revisit my notes to verify, but I seem to recall going into the 43 grain range before I saw significant pressure signs. I know all barrels and chambers are different, what works in one rifle won't work in another, etc., but I was curious to know what you're seeing.

On a side note, I absolutely love the 140 BTHP. It doesn't have the BC of its ELDM cousin, but dammit, those BTHPs just shoot for me! And you can find them for about $22 a box. For their cost and performance, they're hard to beat!
 

vergil

Private
Minuteman
Jan 27, 2018
10
2
6
Just curious, but what pressure signs were you seeing? Flattening of the primer, or are we talking sticky bolt/extractor swipes? The only reason I'm asking is 41.8 grains of RL16 in Hornady brass is 0.1 grain lower than my match load with those same components, which put me in the low to mid 2800s. I would have to revisit my notes to verify, but I seem to recall going into the 43 grain range before I saw significant pressure signs. I know all barrels and chambers are different, what works in one rifle won't work in another, etc., but I was curious to know what you're seeing.

On a side note, I absolutely love the 140 BTHP. It doesn't have the BC of its ELDM cousin, but dammit, those BTHPs just shoot for me! And you can find them for about $22 a box. For their cost and performance, they're hard to beat!
Where do you find these $22 a box? Every time I check they are around $30.
 

Lunchbox27

Sergeant of the Hide
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Mar 23, 2017
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MD
Just curious, but what pressure signs were you seeing? Flattening of the primer, or are we talking sticky bolt/extractor swipes? The only reason I'm asking is 41.8 grains of RL16 in Hornady brass is 0.1 grain lower than my match load with those same components, which put me in the low to mid 2800s. I would have to revisit my notes to verify, but I seem to recall going into the 43 grain range before I saw significant pressure signs. I know all barrels and chambers are different, what works in one rifle won't work in another, etc., but I was curious to know what you're seeing.

On a side note, I absolutely love the 140 BTHP. It doesn't have the BC of its ELDM cousin, but dammit, those BTHPs just shoot for me! And you can find them for about $22 a box. For their cost and performance, they're hard to beat!
at 41.5, I was getting ejector swipe, a hard to lift bolt but no flattening of primer. At 41.8 the bolt took a serious tug to open, ejector swipe present again and the primers were losing their shape. This was 2900 fps and signs to me that I'm at or approaching pressure limits. This was a 50 degree day, too. Same action, different barrel... my load was 42.4. This chamber is tighter than my factory.

I have found it very hard to beat the 140 hpbt. The performance I get with the price spent is well worth it to me. I did crunch some numbers with the difference in ballistics to the eld-m, but I'm not even sure I want to mess with it for a slightly less wind call.
 
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matt0239

Private
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Aug 23, 2012
2
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2
46
Michigan
I'm shooting a gas gun - Christensen DMR 24"

Best load to date:
Berger AR Hybrid OTM Tactical 130gn
44gr RL16
2x fired Hornady brass FL, neck bushing .288
GM215M
COAL 2.790

2965 fps and shoots bug holes consistently 4 out of 5 rounds in a group. My "flyer" that appears in nearly every group I shoot is never more than 1/4" off the group but it bother me and I think it may simply just be me doing it.

This rifle has its factory gas block and is over-gassed. Rather than tuning gas, to this point I've gone to a JP SCS with heavy spring - ejection pattern is now 3:15 on the clock and consistent as can be.
 
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