So before you all laugh me off the forum
I'm not laughing as I have mounted them on shotguns, for slug hunting. One fella that I mounted one for claimed he hit a deer at 80yds. but I was not there. Some in his hunting group, did give him some lip when he pulled it our of the case but not when he got his deer. ....
Obviously there are others who mount scopes and if you look at their specs, they are rated for Shotgun & M/L's
Be Safe !!!