I had a 454 casull barell rechambered to the 460 s&w by ssk. The 460 is also supposed to be safe with the 454 and 45 colt loads. I also (not by ssk) had a trigger job with heavier hammer spring installed. I shot 5 shots of 454 loads (factory) today and had 1 with a pierced primer. Could this be a result of the heavier hammer spring? Just dumb luck with the ammo? spacing problem? Any ideas?
thanks chris