10/22 magnums can be tricky...but what ever you do, do not use a bolt buffer pin that does not come with a back support ( see
http://cheapgunparts.com ) there are guys all over ebay selling "magnum Bolt Pins" that do not have a back support. Without it..steel or solid polyurethane, it will snap or shear off in a short time. This is because there is a small amount of room behind the magnum bolt pin that you don't find in the LR model.
Bob