Which Pyrodex are you using? I use P in my Bobcats and can load PRB all day long without swabbing. With RS it seems to be dirtier. In fact I find that swabbing just seems to push fouling down into the fire channel and cause misfires. The lubed patch swabs the bore somewhat as the ball is loaded and then the shot blows most of it out. Maybe yours is different but all 3 of mine work that way. Also accuracy seems to hold up just fine, but then again I usually only shoot 20 to 25 balls per range session. Your results may vary.