Hornady Superformance 300 Win. Mag

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,^® CX,™ and InterLock,^® bullets to levels of performance that are simply unattainable with conventional ammunition.