There is a 22-250 ackley that I can buy but I have no use for, it is the 40 degree version. Will a 358 winchester reamer fully clean out the chamber?
Good question. Just measured my 22-250 Ackley & 358. On the Ackley point of shoulder is 1.540" from the base & diameter is .450" after sizing. No fired cases handy but I believe they would be closer to .460" at the shoulder. My 358 at the 1.540" mark is just a BCH short of the shoulder & measures .459" on a fired case. If you do your own work, it will only cost your time to find out, otherwise like Flintlocke says, set back a thread to be sure.
