I have a Bulgarian Makarov in apparently excellent shape. When I load 8 rounds in the mags, the slide sticks open on the first 2 rounds. If I push up on the mag, the slide closes. 6 rounds or less in the mags, everything works just fine. I'm using Silver Bear HP ammo.
Anybody have any idea what's causing this?
Anybody have any idea what's causing this?

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