Powder Compression

[Klaus]

HI Klaus, what is the rate of twist(ROT)in your barrel?
Try a thin paper wad under the powder at the bottom of the case also.
Your 63 gn 3F load was a good round group. More so than the others.
Try 64 & 65 grain 3F loads maybe.
How much neck tension are you using?
Gary

sorry to forget to answer about "nec tension"

try to do little as possibile of nec tension i use a Lyman Nec Sizer and turn them out so far that only 0,5 inch of the case mouth is affected. After this i flare with a Lyman M Die tool.
Bullet can be set by hand to the bottom GG and than pushed down with liminal drag in my Rock Chucker Press with no Crimp


Klaus