Sig Sauer Performance 300 AAC Blackout Full Metal Jacket 125 Grain 20 Rounds

The SIG Sauer E300B120 Elite Performance 300 Blackout 125 gr Full Metal Jacket round delivers the kind of supersonic consistency that serious shooters need for target shooting and precision suppressed work, with a Sierra Match King 125-grain projectile chosen for accuracy and minimal dispersion when firing through cans. The Elite Performance series from SIG Sauer is built to provide steady muzzle velocity—listed at 2145 fps—and reliable muzzle energy around 1277 ft-lbs, making it suitable for subsonic-to-supersonic platforms and the 300 AAC Blackout cartridge family, and the brass casing and FMJ profile offer dependable feeding and extraction in bolt guns and AR-style rifles. For range officers, competition shooters, and training environments, these rounds give repeatable point-of-impact and weight retention that help tighten groups and reduce the guesswork when tuning suppressed rigs or sighting optics. If you run suppressed stages, long-range precision drills, or high-volume accuracy practice, this SIG Sauer Elite Performance load balances terminal predictability with consistent ballistics to help you refine zeroes, confirm trajectory, and keep follow-up shots in the same place the gun initially prints.