I just recently acquired an M1 in fair/good shape and proceeded to load up with older (EI 1970's) 180gr SP's. I found that the first round would never strip smoothly as the nose of the bullet would jam up on the edge of the left feed ramp (maybe it was the stagger orientation I loaded?). After the first round was stripped it functioned perfectly every time. I only went thru 40 rounds, but wondering if OAL is playing a factor in my initial feed issues or is it just the stagger pattern I am loading into my clips? Hard to find a source of 150-165gr FMJ's which are not WWII surplus....