WHAT DOES SMOKELESS POWDER MEAN?

I am not confident in the chemical make-up of your compound that locked up my .forty five Colt Marlin After i tried to sneak 10 rounds of 3Fg BP through it in the future, but six rounds in it locked up Along with the the blackest and stickiest crap I have ever noticed.With vintage powders, I did have a look at some vintage loading manuals and found