I'm more of a bow hunter, but I'll be taking the shotgun out for some deer hunting this weekend. In Indiana rifles are not allowed. I have a Remington 1187 with a rifled barrel and cantilever scope mount. I'm not happy with this setup though, and I'm looking for some solutions. The problem is that the scope and mount assembly flex. It seems to go back to the same spot, but I think that it flexes way too easily and any movement or bending would throw my scope out of alignment. I've thought about stiffening up the rear by running a bolt through the weaver mount, threaded into the receiver with a shim in between to two. While that would keep it solid, I'm not too keen on drilling and tapping my receiver. I would also have to dismount the scope every time I wanted to swap barrels in order to get to the screw. At more than $2 a slug that would get pricey to re-sight. Another option seems to be the B-square mounts. They mount to the pins which keep the trigger assembly mounted to the receiver. This looks more stable. Any other suggestions?