Hsm Subsonic 308win 178gr Bthp - 20rd 25bx/cs

The HSM Subsonic 308win 178gr BTHP ammunition is purpose-built for tactical operators, precision shooters, and noise-restricted environments where subsonic performance is non-negotiable. This 20-round box delivers a complete ballistic solution for suppressed rifle platforms, delivering reliable terminal performance without supersonic crack that compromises stealth or tactical advantage. Whether you're conducting precision work downrange or training in proximity-sensitive areas, subsonic ammunition eliminates the velocity signature that defines conventional full-power loads.

Built around a 178-grain boat-tail hollow point (BTHP) projectile, this subsonic load achieves a muzzle velocity of 1,060 feet per second—well below the 1,125 fps sound barrier—ensuring the ammunition remains transonic throughout its flight envelope. The BTHP design provides superior aerodynamic stability and consistent trajectory from suppressed platforms, while the hollow point construction delivers controlled expansion on target. HSM's precision manufacturing ensures case-to-case consistency and reliable ignition, critical factors when working with subsonic velocities where margin for error is minimal.

This ammunition is ideal for law enforcement tactical teams, military designated marksmen, and civilian shooters running suppressed .308 Winchester platforms. The 178-grain weight provides sufficient energy retention for mid-range engagements while maintaining subsonic flight characteristics essential to suppressor effectiveness. Each case contains 20 rounds, with 25 boxes per case for volume users, making it accessible for both single-box purchases and operational stockpiling. Compatibility extends to any .308 Winchester receiver, though performance is optimized in rifles equipped with quality sound suppressors and properly tuned actions.