On the cleaning thread - you may want to try this stuff called Vortex. It's a liquid you pour down the bore,wait a couple of minutes and pour it back into the container. Totally reusable. My friend picked up a Renegade at a yard sale that the bore looked shot with a bore scope. He waited twice the time before spilling it out and the bore looked like a mirror finish. Good product that really works. No brush,no mess,no fuss.
Rock Lock