I picked up a Mauser last Friday. It was billed as a 6.5x55 Swedish. It won't fire because there's something wrong with the trigger. So I got it for a song. No import markings what so ever, and it's been sporterized. The stock is a Boyd's stock. I finally had some time to dissasemble it and check it out. As it turns out it's a Mexican Mauser, which means it may be 7x57. Picked it up as a project gun to rebarrel and mess around with, since Mauser actions are so sweet. But I'll be doing some research before hand.