They came on my .50 BFG with some generic scope that I took off. When I took off the scope, it was crimped. The tube is 30mm, and the rings measure 29.96 mm with a little gap in them. They are steel rings also. They have little rings cut inside them on the bottom and top ring. So it looks like they match, but they look like they are asymmetrical. Or eccentric might be a better word. Whose rings are they and do they look right? Wonder why 30mm rings crimped on a 30 mm tube.


