I have built a couple of 6x45s on the mini mauser. My 6x45 African, almost a clone for your Mauser is on a Sako L-461, weighs under 6 lbs. and shoots real tiny groups with about any load....My deer and antelope load is the old 75 gr. Barnes X at almost 3000 FPS. It has worked very well on Rockchucks, coyotes, to Deer and Antelope. All one shot kills, but you have to use it with a modicum of caution and pick your shots.