Re: Flatning Primers and Blowing out Primers
The best load out of my 22-250 is 33.3 gr. of Varget, with a Speer #1035, over a CCI BR2 primer.
Headspace issues sound like the most viable option right now. Easy way to check it also, without spending any extra money. Take your full length sizing die and insert a 1/8" (or close) shim on the die body; so when you screw it down, you have the die lock ring, then the shim, then the press. This 1/8" shim will essentially make you neck size only, but you have to size rounds that have been fired in that gun's chamber and not resized yet (fireformed). Load and shoot those rounds, and let us know how you made out.