Spend a little time with the BarskaA(R) Iron Boresighter Kit now and save yourself the cost of extra ammo and time when you go to sight in your scope. The boresighters in this 15-pc. kit fit snugly into the barrel of your rifle to eliminate "play" and give you more accurate sighting. Regardless of who mounted your scope, a reliable boresighter will increase your accuracy. Iron bore sighting kit includes arbors for the following calibers: .177, .22, 6mm, .25, 6.5mm, .27, 7mm, .30, .32, .338, .35, .375, .44, .41, and .50 Snug fit eliminates any "play" Carrying case included Order today!