update:
original reamer is a .254 neck and .045 freebore
opened the throat up ~ .130". I got the 75 eldm to 3450. shot tiny little groups. thinking about ordering a reamer to run the alpha brass (already formed). im thinking .190' freebore and .255-.257 neck. any input would be appreciated. i...
I was wondering about the alpha brass. Less capacity than lapua I’m guessing and it seems soft. I’ll try to form some lapua brass and see what that does. Thanks
Curious if anyone else has had similar findings on the 22 dasher??
Rifle:
Stiller spectre action
Broughton 8 twist bbl cut at 22”
Ptg standard 22 dasher reamer(not sure of freebore but it’s short)
alpha ocd dasher brass necked down
Hornady 75 eld
H4350
Cci450
started at 31 grns of powder and...
Wow, do you remember what freebore? I started at 31 grns and worked up from there got a pretty stiff bolt and pressure signs at 34 gns. Velocity was right at 3100.
Has anyone played with the dtacs in a brx with H4350? I was loading varget and 105s but I’m going to give the 115s a try. Rifle is an impact action and 28.5” proof 7.5 twist bbl.