284 Win. Well-Known Member Joined Jun 2, 2010 Messages 124 Oct 23, 2021 #1 Chambering a 28n What's the best free bore for 143 Hammer bullet. I take a 8 or 8.5 twist would be good to go? A Leaphart
Chambering a 28n What's the best free bore for 143 Hammer bullet. I take a 8 or 8.5 twist would be good to go? A Leaphart