I recently purchased a CZ527 in 7.62x39. Love the gun...other than a couple issues. The biggest issue I am having is that the bolt occasionally rides over the next round and almost alwasy slips over the last round in the magazine. I was looking at the bolt, and it does not look well machined at the base of the bolt face where it would catch the rim of the cartridge. I am thinking that this is letting the rounds slip under the bolt (sure what it looks like), especially as this caliber is really a rimless cartridge.
Wondering if a couple other folks would mind looking at their bolt face and tell me if the bottom edge is rounded off or if it is machined cleanly and has a corner as you feel over the edge of the bolt face to the bottom side of the bolt (bottom if the bolt is open).