I have a newly required number 4 mk 1 that is in excellent condition and shows little wear. The bolt matches the receiver. I shot it for the first time today, using both an original factory mag and an aftermarket mag. The ammo was 174 grain Privi. I had the same problem with both mags. When closing the Bolt to chamber a round, the top round would not budge out of the magazine. This did not happen on every round, but was consistent. Each magazine looked the same as far as the forward ears that hold the front of the round down in the magazine. It appears as though the top round in the magazine wasn’t pitched high enough to easily slide up the feed ramp. Towards the end of the shooting day, I was having better luck as I used more muscle to close the bolt. I have another Number 4 Mark 1 that is well used, and I can’t recall having that problem with it. Thoughts?
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