I've had bad luck with them too. I had a set of scope rings from them that I put on a .22LR. The screws wouldn't tighten up properly unless I kept track of which screw went into each hole (they're weren't interchangable at all). Even then they just didn't slide in very easily. I've had rings from Tasco, Simmons, Weaver, Warnes, Millet, and Burris. All of them, even the other cheapo brands such as Simmons, worked better than the B-Squares.