7mm ULTRA MAG

The 7mm Remington Ultra Magnum (aka 7mm RUM; not to be confused with 7mm SAUM) has the largest case of any commercially available 7mm cartridge, and it certainly puts all that room for propellant to effective use. It launches a 150 grain projectile to a nearly Mach 3 muzzle velocity of ~3,325 fps. Heavy recoil, explosive muzzle blast and short barrel life are the prices you pay for the 7mm RUM’s flat long-range trajectory and commanding stopping power.