Just got back from the range with my usually good running Ruger 22/45, and after jam after jam, stovepipe city, I opened up a new box of Remington Bulk ammo. My problem instantly went away. The Reminton ran flawlessly, and was notably hotter shooting. I usually have pretty good luck with the Fed bulk, but I'm not buying it any more. I only started shooting it again after getting a bunch of dud Remington rounds, but thats better than 3 jams every mag full of Federal.