Hornady 30 Cal .308 175 gr Sub-X Bullet 100/ct

The Hornady 30 Cal .308 175 gr Sub-X Bullet is engineered for operators and hunters requiring subsonic rifle performance without compromising terminal ballistics. Designed to function below the speed of sound—typically under 1,125 fps—these bullets deliver effective penetration and expansion in suppressed rifle systems where noise signature matters. Whether deployed in tactical operations, precision hunting, or training scenarios with sound-limiting equipment, the Sub-X platform addresses the critical gap between subsonic velocities and dependable bullet performance.

Hornady's Sub-X features a lead core with a gilding metal jacket incorporating long grooves that enhance stability and reduce drag at subsonic speeds. The patented Flex Tip insert—a polymer cavity design—initiates controlled expansion on impact while maintaining structural integrity through intermediate barriers. At 175 grains, this projectile mass is optimized for the .308 Winchester cartridge, providing the momentum necessary for deep, consistent penetration even when velocity is deliberately reduced. The flat profile and groove design work synergistically to maintain accuracy and predictable ballistic coefficients in subsonic applications where traditional high-velocity bullet designs often fail to expand reliably.

Precision rifle shooters, tactical professionals running suppressed systems, and hand loaders benefit most from this 100-round per box configuration. The Sub-X is ideal for medium-game hunting and defensive applications where suppressor use is standard—particularly in bolt-action rifles and semi-automatic platforms chambered in .308 Winchester. Reloaders should verify powder charges and primers meet Hornady's published load data, as subsonic velocities require careful cartridge assembly to ensure consistent performance and firearm reliability.