I have an 1895 Marlin in 45-70 that has been giving me fits accuracy-wise. Or lack of accuracy. I recently received the custom Accurate mold to cast .461" boolits that I hope will fix the problem with the .4595" groove diameter of the micro-groove barrel.
To make sure the barrel is absolutely clean, I've been treating it sporadically for several weeks with Shooter Choice Lead Remover and a brass brush. Patches continue to come out with a strong grayish discoloration that I have been assuming (dangerous word) is lead residue.
Is this lead or am I somehow getting a false positive? I have tried to keep the brush clean.
Thank you,
Richard