McMillan TAC-338 in .338 Lapua Magnum with 27-inch barrel, bridging the gap between precision tactical .308 systems and full .50 BMG anti-materiel rifles. Type: Rifle Action: Bolt-Action Caliber: 338 Lapua Mag Capacity: 5 Year introduced: 2005, USA Weight: 210 oz Overall length: 52" Status: Active Military use: Yes Intended use: Military sniper, special operations