Absolute Hammer load data

[Calvin45]

I just resized and primed the leaky case and there may have been a very, very slight loosening of the pocket. Maybe. Most likely not. It's tough to tell, but it definitely wasn't trashed. I'm the second owner of the cases, some were less tight rom the start.

Either way after looking at the brass again I'm calling it, going to load for 3400. That's what my gut is telling me, and it's what my goal was. I matched Steve's 280ai/h100v results with low volume brass and temp stable powder, and I think I remember him saying somewhere that was a barnburner for the 280. Open to correction.

If someone wants to send me some RP and nosler Saum brass and some bolt head component springs I'll happily put it back on the data grill.

"The Data Grill". Sounds like a heck of a resource!

 

[JakeC]

"The Data Grill". Sounds like a heck of a resource!

Comes with choice of slaw or cornbread

 

[antelopedundee]

I just resized and primed the leaky case and there may have been a very, very slight loosening of the pocket. Maybe. Most likely not. It's tough to tell, but it definitely wasn't trashed. I'm the second owner of the cases, some were less tight rom the start.

Either way after looking at the brass again I'm calling it, going to load for 3400. That's what my gut is telling me, and it's what my goal was. I matched Steve's 280ai/h100v results with low volume brass and temp stable powder, and I think I remember him saying somewhere that was a barnburner for the 280. Open to correction.

If someone wants to send me some RP and nosler Saum brass and some bolt head component springs I'll happily put it back on the data grill.

If a primer pocket is so loose that the primer falls out will it tend to leak if you put the primer back in and shoot it?

 

[antelopedundee]

Here is the latest data: 6-28-2022

I notice in looking at the data that it's for Absolute Hammers only yet the second column is titled Hammer Hunter Bullet. Since Hammer Hunters are different bullets shouldn't the column heading read Absolute Hammer Bullet?

 

[JakeC]

If a primer pocket is so loose that the primer falls out will it tend to leak if you put the primer back in and shoot it?

There's more experienced guys all over this site than me but I'm pretty sure that if a primer leaves a case with leas than normal decapping force than the case is unsafe and dead as a smelt. Even if that isn't strictly the case If the primer falls out of an expanded pocket then a new, smaller primer won't stay in it. Brass in a case head won't spring back smaller. If I was defending the motherland from zombie hordes I might scotch tape it back in and tape a National Geographic over my face but short of that… nope.

 

[antelopedundee]

Awhile back I had a old loaded round that had a neck split. I pulled the bullet and the powder was damp and clumpy. See pic.

I'll likely do the same with this one since it's about 20 years old and has been without a primer for an unknown amount of time. Not worth the possible bad results to shoot it.

ETA
After pulling the bullet, the powder inside was normal.

 

[jeremy.b]

Couple Updates.

For science I took out H4831SC with my 270 1-7 twist to see where it fell. It seemed to fall nicely in line with most other powders. Seemed to give more reliable pressure indicators compared to powders in the H4350 range. RL26 also gave reliable pressure signs in my previous testing


Tikka T3
xcaliber 270 win 1-7 twist, 24" done by Crown Ridge
139gr AH
Win Brass 1x fired, neck turned, primer pocket uniformed, trimmed & full Length sized
3.388 COAL
1/8 turn crimp LEE FCD
CCI 200 primers
86 Deg F

H4831SC
58.0 3063
58.5 3103
59.0 3110
59.5 3134
60.0 3162 Light Ejector
60.5 3187 Clear Ejector

All above in a 1.06" group

Took my wife's 243 out to see how it liked the 69gr AH's:

Savage Storm 110
243 Win
Factor 22" barrel 9.25" twist
69 GR AH
Hornady brass 2x Fired
2.70 COAL
1/8 crimp Lee FCD
Fed 210M
86 Deg F

Varget
41.0 3459
42.0 3547
43.0 3625
44.0 3705
44.5 3732 Light ejector (this brass is soft so kept going)
45.0 3770 Light ejector
45.5 3822 Light ejector
46.0 3851 Ejector

This gun LOVED the 69 AH's All the above shot ~0.8" at 100. With better brass I would assume it would be feasible to settle in around 3800. For this gun and brass I'll probably set up a quick group at 44.0 and make sure the group holds up.

All good stuff, was fun to get out and throw some more copper down range!

 

[unclecroc]

Cooper 54 22-250 26" barrel 1-12 twist
22-250 Remington
51 absolute hammer
Winchester brass new
Federal 210m
2.425 OAL
No crimp
IMR 4064
36-3825
36.5-3874
37-3858 started to compress
37.5-4093
38-3965 sticky bolt,stopped

Alliant rl10x
33-3866
33.5-3878
34-3927
34.5-3980
35-4011 sticky bolt,stopped

Ramshot xterminator
33.5-no read
34-3772
34.5-3812
35-3875
35.5-3932
36-4037
36.5-4070
37-4040
37.5-4111
38-4181 sticky bolt,stopped.
In the vanilla 22-250 with the 51 it seems to favor the 4064-3031 burn range. The bullets stabilized well in my 1-12 twist, accuracy during the ladders was under 3/4 inch at worst.

 

[just_jon]

That's smoking for a 22-250. I have not tried that bullet in my 1:12
22-250AI because of the recommended twist rate of 1:9.75.

 

[unclecroc]

That's smoking for a 22-250. I have not tried that bullet in my 1:12
22-250AI because of the recommended twist rate of 1:9.75.

I wasn't going to try it either but after talking to Dallas hardaway he said they would sabalize if I kept the velocity up. On paper they stabilized fine, I haven't tried on game yet.

 

[just_jon]

I wasn't going to try it either but after talking to Dallas hardaway he said they would sabalize if I kept the velocity up. On paper they stabilized fine, I haven't tried on game yet.

Good to know. I've shot out three 22-250 barrels using 52 grain SMKs and have a soft spot for that weight. I'm currently having a blast with the 35 and 44 grain HH running 4,864 and 4,413 fps, respectively. The local groundhog population is getting a wee bit skittish.

 

[unclecroc]

22-250
Cooper 54 26" barrel 1-12 twist
51 absolute hammer
Winchester brass
Federal 210m
2.425 OAL
CFE 223
38.5-3950fps
39-3990fps
39.5-3994fps
40-4038fps light ejector swipe
40.5 -4056fps ejector swipe
41-4126 sticky extract- stopped.
Accuracy over the ladder was under 1" at 100 yards.

 

[Calvin45]

22-250
Cooper 54 26" barrel 1-12 twist
51 absolute hammer
Winchester brass
Federal 210m
2.425 OAL
CFE 223
38.5-3950fps
39-3990fps
39.5-3994fps
40-4038fps light ejector swipe
40.5 -4056fps ejector swipe
41-4126 sticky extract- stopped.
Accuracy over the ladder was under 1" at 100 yards.

So 39.7 grains just cuz 3999 ain't 4000!

I know the feeling. That's a sweet load!

 

[GLTaylor]

22-250
Cooper 54 26" barrel 1-12 twist
51 absolute hammer
Winchester brass
Federal 210m
2.425 OAL
CFE 223
38.5-3950fps
39-3990fps
39.5-3994fps
40-4038fps light ejector swipe
40.5 -4056fps ejector swipe
41-4126 sticky extract- stopped.
Accuracy over the ladder was under 1" at 100 yards.

I'm amazed and pleased it shoots well. The 51 calls for a 1-9ish twist!