Both RCBS and Redding can make a custom sizing die, unless you choose to have the 7X57 chamber trued and polished.
The Sharpie case paint up plan works.
I have a custom Mauser in 30-06 Ackley Improved that was a bit tight. I finally got a neck-size only die
and the rifle works smoothly now. But finding out EXACTLY where the cases were sticking being too tight,
greatly helped in solving the problem.Tighter re-sizing die fixed the problem, along with insuring the chamber was
squeaky clean.
Last edited by 1916XE; 05/26/26 03:32 PM.