The painted stuff sticks in the chamber IF your chamber is dirty!!(and most of them ARE!) Try to stick with brass cased when you can just to avoid hammering on your bolt handle if it sticks. It shoots fine, but, Is a pain to open the action afterwards. I had some SelliorBellot that had soft primers and i had the little donut-hole cutouts go inside the bolt!
So take it completely apart and clean it well for excellent results. The MN is a really fun accurate shooter. It will eat any type ammo that is shootable but check your fired cases frequently when shooting OLDER MilSurp ammo. Just my advice. some Privi brass is reloadable. With a scope, these shoot straight. If it has a bayonet on it, then that was sighted in and meant to be shot with it open for the barrel harmonics. Close the Bayo and the POA changes. Have fun !