With my Model 12 LRPV, I clean after each range trip with bore mops and tight patches so I can greatly lessen the need for brushes and abrasives. That’s primarily to keep ahead of the carbon build up. Also de-copper with KG-12 at each cleaning. They do indeed copper foul.Truth. Their barrels look smooth as a rat tail file but somehow manage satisfactory accuracy. I’ve seen some that really stacked bullets. Total copper mines but usually they do pretty good.
