been there, done that, I shot a 15 round sig p226 for years before there was a production or limited class, going up against the 10 round open guns of the era. and let me tell you that it fun but it wasn't pretty. having the extra mag capacty was nice, but shooting minor in a game that geared toward major, I found that having the few extra rounds in the gun was not a big advantage. I found that I had to shoot fast, just as fast as the open guns, and shoot A's. Shooting C and D hurt your score to much. and in the end, if you want a good score, you have to shoot every stage perfectly, with no margin for error. in the end I just got a .45.