I have a brand new Ruger 10/22 and new Butler Creek magazines. I'm having trouble with jams . Both magazines act the same. I get a Jam especially on the first chambered round. After the first it is better but still jams often. The first one upon rack will almost always jam. If you wiggle the mag it will usually chamber. I'm hoping this is just because both are brand new. And yes that mag is all the locked when jamming occurs. I have a buddy that shooting the exact same set up with zero feed issues, only difference is he has thousands of rounds through his. Any help would be greatly appreciated..