7SAUM freebore


Well-Known Member
Sep 16, 2012
I'm in the process to build a 7SAUM in a long action to punch paper with 168 or 180grs bullets.

I red everything I found about the subject but still have a question.

What is the best troath length considering case filling and bullet weight?

Should I make a dummy round and place the begining of the boatail flush with the end of the neck? Go deeper or less???

The barrel is a Kreiger 1x8,5-5R. Obviously I don't know if the 180 will be more accurate than the 168 so should I troath for the 180 or the 168?

What is the way to go? What do you guys do?

Thanks, Mart