Gents If you shoot cast bullets it could lead your bore.
B4 this happens, go to Lowes tool dept, on the lubrication endcap you'll find Dupont spray (dry version) Teflon.
Spray a little down the bore from the chamber end, Be SURE not to get any in the chamber. Use the little red tube.
Run a patch or 3 down the bore from chamber to muzzle. (Not the other way)
This thin coating gets in the pores of the barrel and makes almost impossible for lead to stick.
As a small benefit your loads will be slightly faster. In my experience this trick is good for at least 200 rounds, I've not had a BBL with a leading problem yet.
CWS