Trickymissfit
Well-Known Member
what I would like to try is a .300 Savage case necked down to .224, with a shoulder length of 1.38". Keep case length to about 1.86". Of course I could blow the case out to a .460" diameter. It will not be far from the 22-250, and should handle heavier bullets better in a 1:9 twist barrel. Looks like IMR 3031 ought to be where to start, and barrel and throat life should be extremely good. Course you could do the same thing by running a 22-250AI reamer in there, but short. I'm just not in love with the forty degree shoulder angle.
gary
gary