Just picked up a new G21 Gen4. I had an earlier model some 15 or so years ago, but I didn't keep it long. This one is a keeper. Were I back in law enforcement, this would be my first choice as a full sized duty .45. On my first trip out today, I fired 161 rounds of various factory .45. *50 rounds Winchester GI 230 FMJ *50 rounds Remington 185 grain FMJ-FP *50 rounds S&B 230 FMJ *7 rounds Federal HS *2 rounds Speer 230 Gold Dot *2 rounds Winchester RA45T Distance just under 15 yards, shooting off-hand, rapid fire (10 rounds/10 seconds). The pistol worked 100%, and all rounds (well, nearly all rounds) went into a 5 inch hole in the center of the target. This G21 has the factory Trijicon's, and it was printing about an inch above point of aim, windage dead on. 161 rounds isn't definitive, but it's a good start and trouble free. 5803 Wanna kill these ads? We can help!