I've read the great post on patterning at the top, however I have an 01 lever ten which I assumed patterned well cause I hit the bunnies I shot at..Well they must have committed suicide,saw the pellet comming and stepped in front of it. I actually took the time to pattern the gun.To say the pattern was patchy is being kind. The bore has roughness, but is by far and away the best bore your goin to find in a shotty of that era..My prob is,I really want to stay with the fibre wads I got from precision reloading. When you poke them out with a mild 700x load you get the BP haze without the BP,its great. I'm using 1 1/4 ounces #5. The other thing I've found is that although the barrel has not been monkeyed that full choke is more like IC in my other guns...I know a shot cup or wrap will cure some of what I've said but its so darned "not original" . I'll live with the pattern to big if I can just densin it up. Appreciate any input