So I recently picked up a new, never shot before Makarov pistol, chambered in 380 ACP, and i'm having issues with slightly bulging brass casing after shooting it from the pistol. I went out shooting last weekend, with 100 rounds of Remington UMC, and noticed the bulging after picking up the brass for potential reloading later (Will post pics of the brass later, as I have had a long day, and don't feel like getting up.)
Figured I'd ask the forum if they have any insight on the issue, like perhaps it may be the ammo, it'll break in over time, or something.