Re: problems with 7.62mm X 54R rounds in a Mosin Nagant.
Apart from the cases actually getting stuck in your Mosin I would suggest you try another "fix". Take out your Mosin bolt & rotate the back end of the bolt simulating it's action as the bolt is opened after firing.You may feel A LOT of friction ast the back of the bolt twists. Look at the surfaces that touch each other as that back part twists. Are they a light grey color? That's the stuff that tends to build up & look alost like the color of the bolt. Adding oil to that grey surface doesn't usually help much. Take the bolt apart & using either crocus cloth & oil or fine sandpaper & oil dress & clean those flat sufaces that rub each other. Remember that the bolt has a hard outer shell of metal & is softer inside. Only polish/cut down to where the metal is shiny & bright-no further & add light rifle grease to the surfaces. This process will help at least reduce the effort required to lift the bolt after firing. If your chamber is dirty that would be another place to fix. Does your bolt match the receiver as far as serial numbers?