Help needed - strange happenings

[Ovidio]

Hello, the Mauser is a controlled-feed gun.
You need to put the ammo in the magazine or, if you want to single-load without pressing them in the mag, you have to get the extractor over the rim of the case.
It just requires to press slightly against the elevator of the mag and push the bolt forward.
If you force the bolt home without getting the extractor over the rim, as you show here, you risk damaging the extractor.
All the rest, seen here a bit in a hurry, seems to be working perfectly.