I use a BSA 3" 32" barreled 8 1/4 pound fowler. Watch Thad Scot's site and you can get one for about 6 to 8 hundred. Hell for stout and cheap enough that I shoot steel in it. I can't afford Matrix at $3.50 per shell. If I shoot the barrels out, I'll replace it with another. No signs of problems yet.