7mm-08 "Ackley"

[MallardAddict]

If you want the best performance. From and awesome cartridge. Then buy alpha 260 brass, neck it up , and have the gunsmith set the headspace off the neck shoulder junction of that. You can get 3,000 easy with 150 Eld-x from a 24" barrel

Why not just buy Alpha 7mm-08 brass out of the gate since it's plentiful currently?

 

[tdean]

Small primer

 

[gemihur]

need the rim provided by use of 307 Win brass
this is for 7mm Super Bower in a Contender

http://www.retro.co.za/gundex/articles/Ultimate%20(Thompson%20Contender)%20pistol%20accuracy.pdf