Hornady Custom 125gr SST

Hornady Custom 300 AAC Blackout 125-grain SST brings the proven Super Shock Tip bullet design to the .300 Blackout platform, creating a purpose-built hunting load optimized for whitetail deer and medium game at ranges where .300 Blackout is most effective. The SST bullet features a sharp polymer tip that initiates expansion on impact, combined with Hornady's proprietary Interlock ring that mechanically locks the jacket to the lead core. This prevents jacket-core separation during penetration, ensuring the bullet maintains its mass as it creates a devastating wound channel.

At 2,175 fps from a 16-inch barrel with a ballistic coefficient of 0.278 (G1), the 125-grain SST delivers 1,313 ft-lbs of muzzle energy with a relatively flat trajectory for .300 Blackout. The heavier 125-grain weight compared to standard 110-grain supersonic loads provides superior sectional density for deeper penetration on medium game, while the polymer tip ensures reliable expansion even at the reduced velocities encountered at extended ranges. This makes it effective on whitetail deer inside 200 yards, which covers the vast majority of .300 Blackout hunting scenarios.

Hornady loads the Custom line with carefully selected propellants and premium brass cases to deliver consistent velocities from shot to shot. The ammunition is designed to function reliably in both direct impingement and gas piston AR platforms, and the 125-grain bullet weight is well-suited for the standard 1:7 or 1:8 twist barrels found in most .300 Blackout rifles. For hunters who want a dedicated supersonic hunting load that delivers controlled expansion without excessive fragmentation, the 125gr SST is an excellent choice for .300 Blackout deer hunting.