Christian, a freelance outdoor writer, first tried a GRITR laser boresight on his daughter's .223 youth-hunt rifle plus 9mm and .45 ACP pistols. Adapters fit from .22 to 12 gauge; after garage work at 15 yards the rifle was already on paper at 50 yards, matching the maker's 5-inch claim at 100 yards and saving ammunition. The aluminum tool felt solid and simple despite a flimsy plastic case, and at fifty dollars he now keeps it for mixed-caliber sighting.