If it ain't broke then don't try and fix it..
A half inch gun is something one should leave alone..With the advent of the chronograph the Ackley Improved cartridges have died on the vine, you gain about 100 FPS in most cases..Even Ackley himself said the only real successes were the 257 Robts and 7x57 that apparantly gained 300 FPS in his guns. The gained more like 200 FPS in mine and I found that I could duplicate his goals in the 7x57 with a 06 box and a long throat without cutting my existing chamber.
Just my opine.
I'll take your opine to the bank any Day ! Thanks for all you you share with us.
