Increase your rifle's 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
3,000 Feet per second
150 Grain SST
20 Rounds per box