Very good! Thank you! Posted.
Absolute Hammer load data
- Thread starter RockyMtnMT
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Edited to make more readable, original post I spaced all the data out to make it look like a table but the site jammed it all together.
A few weeks ago I was talking with Steve and he suggested I retry Alliant Power Pro Varmint with the 151s except using Large Rifle Primers (F210) rather then the Magnum Large Rifle (F215). I was finally able to make it to the range yesterday morning and the results have me looking for more Power Pro Varmint. Using the F210 Primers I was able to get to the top of the ladder (~2gr of powder into compression) without any signs of pressure.
Start Low and work up on charge weight!
Winchester M70 FTW SS - 308Win
22in Factory 1in12 twist
Lapua Brass - Trimmed 2.006 Neck Tension 0.006
COAL - 2.863
Alliant Power Pro Varmint
Fed 215 (data from old post)
Charge - Vel
48.0 - 2912
48.5 - 2929
49.0 - 2959
49.5 - 2773
50.0 - 2997
50.5 - 3016
51.0 - 3045
51.5 - 3099
52.0 - 3096 easy bolt lift, slight ejector mark
52.5 - 3135 stiff bolt lift, clear ejector mark - STOP.
Fed210 also 1/8 turn Crimp with Lee FCD (new Data 6/4/2021)
Charge - Vel
48.0 - 2917
48.5 - 2946
49.0 - 2962
49.5 - 3005
50.0 - 3025
50.5 - 3043
51.0 - 3073
51.5 - 3087
52.0 - 3132
52.5 - 3140 Easy bolt lift no ejector mark.
A few weeks ago I was talking with Steve and he suggested I retry Alliant Power Pro Varmint with the 151s except using Large Rifle Primers (F210) rather then the Magnum Large Rifle (F215). I was finally able to make it to the range yesterday morning and the results have me looking for more Power Pro Varmint. Using the F210 Primers I was able to get to the top of the ladder (~2gr of powder into compression) without any signs of pressure.
Start Low and work up on charge weight!
Winchester M70 FTW SS - 308Win
22in Factory 1in12 twist
Lapua Brass - Trimmed 2.006 Neck Tension 0.006
COAL - 2.863
Alliant Power Pro Varmint
Fed 215 (data from old post)
Charge - Vel
48.0 - 2912
48.5 - 2929
49.0 - 2959
49.5 - 2773
50.0 - 2997
50.5 - 3016
51.0 - 3045
51.5 - 3099
52.0 - 3096 easy bolt lift, slight ejector mark
52.5 - 3135 stiff bolt lift, clear ejector mark - STOP.
Fed210 also 1/8 turn Crimp with Lee FCD (new Data 6/4/2021)
Charge - Vel
48.0 - 2917
48.5 - 2946
49.0 - 2962
49.5 - 3005
50.0 - 3025
50.5 - 3043
51.0 - 3073
51.5 - 3087
52.0 - 3132
52.5 - 3140 Easy bolt lift no ejector mark.
Last edited:
nealm66
Well-Known Member
I picked an old , true beater rifle for my first try. It's a weatherby vanguard 25-06 with a bariska scope with unknown round count and lots of rapid fires. Brass is also unknown firings
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nealm66
Well-Known Member
Honestly could keep going but no point really as this rifle is truly a beater rifle
jeremy.b
Well-Known Member
I'm glad you followed up on this! We inherited a 2nd 308 this winter and I finally was able to snag some Pro Varmint last week. I have enough 151's left to run a ladder with Pro Varmint in both 308's and see where they land.
nealm66
Well-Known Member
Really impressed with hammers. One thing I do think going forward for myself at least , I'm going to shoot for pressure and accuracy first, then I'll strap my v3 on. I thought I was basically done with an ultra light tikka in 300wsm with hammer hunters and loaded up 4, 4 shot strings 1/10 gr apart and was shooting for groups at 200. Not 100% wth went wrong but definitely different than what I saw with 2 shot groups at 100 with the v3 strapped to it. I will say my shoulder was fried after load work with the 25-06 and a 300 prc with 245 bergers and 250 atips and the tikka is violent with those hammers.
Good work! I have also found better velocity and no premature pressuring out using standard primers on 2 of my rifles. Mag primers are not always the best choice like previously thought. It seems like std primers with extra neck tension sometimes works better (thanks, BBean). I'm getting quite a collection of Lee FCDs!
G
Have any of you guys using FCDs gone back to "normal" neck tension with the crimp? ie 0.002 neck tension and then add the crimp? If so what were your results? So far I've only added the crimp to brass that I had already sized without the expander ball in my sizing die resulting in 0.006 neck tension.
I am asking because when I full length resize without the expander ball I can't trim the case because I don't have an appropriately sized pilot. So currently I full length resize with the expander ball, trim, neck size without expander, seat bullet, then finally crimp…. It would be nice to cut out that additional sizing. I will probably experiment myself but if someone has already experimented with/without success I would love to know.
-Matt
You still need the extra neck tension
Depending on cartridge, I'm sizing .003-.004 on all and adding FCD.
I've gone as far as .006 experimenting, but ruined some brass trying to seat bullets.
I've gone as far as .006 experimenting, but ruined some brass trying to seat bullets.
dougduey
Well-Known Member
I set all my necks to 0.002 using mandrels before I seat the bullets. Then I crimp. Have been doing this for years and it works well.
I finally got to do some more tests on Ole Pokey
Rem 700 25-06AI
Brux 1-10@ 23.5" Form 1 Suppresser
McRees G5 Chassis
Peterson 270 Brass
CCI200 primer
61g H4350
90g AH
1/8th crimp
Rem 700 25-06AI
Brux 1-10@ 23.5" Form 1 Suppresser
McRees G5 Chassis
Peterson 270 Brass
CCI200 primer
61g H4350
90g AH
1/8th crimp
dougduey
Well-Known Member
Well that does NOT suck!!!
That's a laser beam of death right there brother.
