BSA Bore SighterBSA BS30 Multi Caliber Bore Sighter Get on Paper Fast Without Wasting Ammo Theres nothing more frustrating than burning through a box of ammunition trying to get a new scope on paper at the range. The BSA BS30 Multi Caliber Collimator Bore Sighter eliminates that problem entirely letting you align your optic to your bore before you fire a single round, so your first shot lands on or near the target every time. Whether youre mounting a new scope on a