So I went to the range tonight. I took my Beretta PX4 Storm Compact (fairly new… maybe 1000 round through it) and my brand new Glock 26 Gen4 (first time shooting it), both were 9mm. To shoot, I took some cheap Federal Luger ammo that I got at Wally World. This was the first time using this brand of ammo as I usually use some cheap Remington NATO ammo or some PMC Range ammo. The Beretta definitely did not like this Federal ammo, and the Glock (yes, the Glock) didn't like it either. Splitting 200 rounds between the two, I had 2 failure to feeds in the Glock and 5 or 6 in the Beretta as well as one double feed. I told the guy at the Range counter about it and he said that he thought that that was a little to heavy of ammo for such new guns. I'm pretty sure it was the ammo and not the gun, as I shot the Beretta earlier this week without any problems with some Remington NATO. I did clean the gun really good after shooting it earlier in the week and being as BOTH weapons had problems… I think it's the ammo. What do you guys think? What ammo would you recommend to break these bad boys in?