thank god this would be my biggest problem
the 10,75 is a very natural conversion to this rifle.you can see on the pics how well the 10.75x68 fits into the original magazine.

side by side with a mauser 98 clip

the 10,75 was made by six ammo firm's in four country's in the 1950s. it was the real workhorse and I dont think another bigbore cartridge had have such a wide distribution in this time.