McMillan TAC-50 in .50 BMG with 29-inch barrel and McMillan fiberglass stock, the rifle behind multiple world-record long-range sniper kills. Type: Rifle Action: Bolt-Action Caliber: 50 BMG Capacity: 5 Year introduced: 2000, USA Weight: 336 oz Overall length: 57.5" Status: Active Military use: Yes Intended use: Military anti-materiel, long-range precision