Hello all,
I'm quite new to using lead bullets (I don't cast at the moment, only buy them) and am wondering about an old rifle I inherited. It's a Swiss Vetterli with a .408 bore diameter and .421 groove diameter.
My question is quite simple...would you feel safe shooting a .430 lead bullet down a .421 barrel or is this too much of a shrink? I'm reloading since a couple of years but only jacketed bullets in modern rifles, and I usually stay at a groove diameter +0.001 in this case.
Thanks