Related scenario
I just bought my first M1 Garand. In all likelihood, it will probably be my only gun; I'm not much of a gun person, and I don't feel that owning guns would realistically improve my odds of not being shot. The M1, however, is near and dear to my heart, primarily for historical purposes.
My problem is identical to one posted before: the bandoleer and live rounds are ejected prematurely (usually after the third shot). However, when I purchased the gun, with it were 16 rounds of what appeared to be much older ammo. I'm assuming this older ammo was surplus and designed for the M1. I wanted to save that original ammo, but decided to fire off 8 rounds to test the premature ejection. Sure enough, all 8 rounds fired fine.
My question: Could the modern 30.6 ammunition that I buy anywhere be the cause of the problem? If I bought surplus ammo online from the '60s/'70s, could this resolve the issue?
Thank you for your time.