Remington MSR - Modular Sniper Rifle (USA) Remington MSR - Modular Sniper Rifle, with butt folded image: Remington Military Remington MSR - Modular Sniper Rifle, ready to fire image: Remington Military Caliber(s): .338 Lapua, .338 Norma, .300 Win Mag, 7.62x51 NATO (.308Win) Operation...