I have a Charles Daley mini mauser in 7.62x39 that is a great shooting rifle, barrel is super smooth, great boolit rifle, BUT the chamber is a mess. The chamber has two grooves in it as well as other scratches, these imperfections are taking there toll on my cases and make the action a little hard to operate. I was wondering if I would be able to rent a reamer and try to clean this chamber up with out removing and setting barrel back? Thanks for any info provided.
JW