I just picked up a Sprinfield GI "champion" and it is my first 1911 and my first 45 I love the gun but I am having abit of feeding problems with it. I have only put about 130 rounds of 230 grain RN ammo thru it to break it in a bit. The ammo was CCI blazer brass. I will be loading my own but I have to wait for UPS to bring my dies etc. I have 2 magazines, a 7 rd that came with the gun and a chip Mcormik 8 rd mag. I disassembled the weapon and gave it a good cleaning and a light oiling the night before my first range trip. the pistol feed excelent except for the first round of each magazine. I did try to load the magazines with 1 less than max but did not seem to help. BTW the chip Mcormik mag was not jamming every time at the end of my range session but the factory mag was. I also tried a friends 8rd mag from a Taurus PT1911 and it worked flawlessly. Do these guns/mags need a "break in time" or do I just have some bad mags?