308 Win 150 gr SST® Superformance® Item #80933 | 20/Box US Patent: 8,161,885 | 8,413,587 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.
