http://castboolits.gunloads.com/showthread.php?84620-BSquare-mount-for-Mauser-71-84 According to this, he mounted a scope to his successfully.

 

Thanks for that info. My only problem is the rear sight and base had been removed and the barrel was shortened to 20". The original owner used Accurate 7744 smokeless powder under a 370gr lead bullet and said it shot fine. I was hoping to make a scope mount that was forward of the breach area and mount a LER scope like a scout scope on the rifle. I've got the work partially finished and I'm using a scope mount that was designed for the 340 Savage/Stevens bolt action that was mounted on the side of the receiver. I'm just moving it forward with an adapter. If it doesn't work I can try making a red dot mount to work with my adapter. I really wish I could find the original rear sight mount since it would look cleaner but I've checked all the gun parts places and E-bay with no luck.

Thanks for the reply and info,
Boomer

 

Try a Commission 88 rear sight mount. The barrel dia. is nearly the same.

 

Thanks for that info! I forgot all about the 88. When I was a kid my uncle gave me one that he thought he had deactivated by removing the bolt head. I think it was an 88 with a two piece bolt. Only problem was the firing pin was still there and a round could be chambered -- and I'd be it could have been fired. I'll try to locate the barrel tube with the sight base. Numrich wants $44 for the tube and I'd hate to spend that for something that might not work.