JFrameTwitch
Member
I shot about 150 rounds of .38 spl through my 620. Afterwards I went to clean it and noticed marks on the front outside of the cylinder. On the outside of each chamber. These do not come off with solvent and a toothbrush. The barrel also appears to have some leading. Is it possible that these markes are lead? I shoot the same rounds out of GP100 with no issues at all. Could this indicate a problem?