I shoot light 38 Special loads in a combat league. By light I mean 3.2 grains of tightgroup and a 125 gr. Lee bullet cast of quenched w.w, and lubed with liquid alox. Last year I would experience just a smattering of leading. Not enough to worry about, really didn't need to clean the gun. This year though the same load is leading something awful. Two changes I made from last year, one I stopped resizing the brass. I just deprime it, then run the completed round through a Lee factory crimp die which I did last year except the brass was full leght resized. The second thing I did was switch from Winchester small pistol primers to Remington 1-1/2 small pistol primers. I switched out of necessity cause I couldn't find Winchesters. I also tried the same new load in other revolvers I own that shot the same old load well without leading and got the same leading. Should I blame the primers or the different loading technique ? I can't see either one of causeing that much difference!
Flashman