Got a whole bunch on rifles and shotguns, all different makes, but never a BSA. Consider them real junk but for all I know they may be made by the same company as some of the others like millet/ultradot etc. I have a millet, aimpoint, nikon and bushnell and never had any problems. Aimpoint is far and away the best but they cost. Nikon costs also but worthwhile just to get a variable size dot that get down to 1moa. Just can't see trusting a BSA after seeing some of their scopes but the only way to know is to try it, also the dot size on them is some large number like 6 moa that at 50 yds will cover the whole deer, can only be as accurate as your sights. Good luck whatever you do.