Caliber: 30 (.308)br /Grain: 180 SSTbr /Packed: 100 per boxbr /br /Super Shock Tipped Bullets. The key to the SST's performance is the sharp, premium-polymer red tip. Combined with the SST's carefully designed profile, the tip shifts the bullet's center of gravity, improving its ballistic coefficient for improved stability, higher accuracy and greater velocity. That translates into more downrange power, a real confidence booster in tough, long-range shooting situations.br /br /Note: These are component bullets, not loaded ammunition.