Just home from shooting my new Gen 4 G17 for the very first time. Born November 2011. Figured I'd only use the very best ammo, in order to give her the best chance at NOT failing to do something.....so popped in to J&G Sales this morning and snagged up 300 rounds of Tulammo and 300 Russian Brown Bear (both 115 grain). Six hundred rounds fired, not a single failure to fire, extract or eject. None hit me in the face or head. A VERY tight little pile (2 feet X 2 feet?) approx. 4 feet to my right. Recoil was almost nonexistent! Accuracy was fine at the 15 yards I was shooting, I tossed 4 bowling pins out there and just beat the heck out of 'em for a couple of hours. I'm very impressed, with both the new Glock and the cheap Russian ammo! I've never fired ONE round of "that cheap Russian crap" until today, never ever. It works fine!