Increase your rifles performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. Superformance uses progressive propellants that take your favorite V-MAX, NTX, SST, GMX, InterLock, and InterBond bullets to levels of performance that are simply unattainable with conventional ammunition.

Features:

• 308 Winchester
• 2,840 Feet per second
• 165 Grain SST
• 20 Rounds per box