Data for ALL Cals Ackley Imp

[Stevo86]

22" 1/8 twist
SIG Hybrid cases
Grouped 3/4 moa with a hot barrel
View attachment 8461263View attachment 8461264

Please tell us more

 

[RogueTanker]

Cartridge?

Fixed - 7/08 Ackley

 

[RogueTanker]

Please tell us more

22" preferred barrel
Archimedes action

 

[Stevo86]

22" preferred barrel
Archimedes action View attachment 8461326

Is this like a .277 sig fury ackley?

 

[FuhQ]

Fixed - 7/08 Ackley

Where did you get the brass? I'm curious how well it holds up in the primer pockets and the fusion-joint. Since you can push that brass to ridiculous PSI, what kind of velocities can you get with StaBall 6.5?

 

[RogueTanker]

It's SIG 23 brass for the 277 fury, resized to 7/08 then fire formed into the 7/08 Ackley. I bought the brass as pull downs from American Reloading for about $.60/case. I'm still working out the longevity part but right now after two firings I'm seeing no change in the case or primer pocket.

With LC LR 11 brass, I was getting north of 2800 with a 25" tube and a 175gr bullet when I tested it out. I'm sure it'd be higher than that even with the hybrid case.