SMOKELESS POWDER SECRETS

I'm not guaranteed of the chemical make-up on the substance that locked up my .forty five Colt Marlin After i made an effort to sneak 10 rounds of 3Fg BP via it at some point, but 6 rounds in it locked up with the the blackest and stickiest crap I have ever observed.With classic powders, I did take a look at some classic loading manuals and located