Sig Sauer Tactical Rifle, 300 Blackout, 110 Grain, Barnes Tac-TX Ballistic Tip, 20 Round Box T300BLK110TTX-20 Sig Sauer Tactical Rifle .300 Blackout 110gr TAC-TX Ballistic Tip ammunition comes loaded with clean-burning powders and propellants that are loaded in premium brass casings for smooth, reliable performance. This ammo features a ballistic tip that helps the bullet maintain velocity and reduces drag during flight.