I shoot a T99 Arisakaicon and it likes heavy bullets. Maybe your Mauser does too. If the cost and availability of bullets are an issue, maybe I can suggest that you ask bullet casters to make a few for you? You will need to slug your barrel so they can make the correct diameter bullet.
Information
Warning: This is a relatively older thread
This discussion is older than 360 days. Some information contained in it may no longer be current.