I only shot 200 rounds out of my new Colt. Flawless of course and the double recoil spring is a big difference. I fed 100 rounds of Winchester Field grade, two boxes of Colt Defense ammo, and a box of Sig Sauer. Very nice. I also shot my Sig Nightmare but this range day was for the Colt mostly. A few dumb pictures are attached. I wanted to save this gun as a safe queen but I think I'm going to run it and run it and see what the new Colt can do.