The Hornady Subsonic 10mm Auto 200gr XTP Handgun Ammunition is a premium, heavy-hitting tactical cartridge designed to combine hard-hitting terminal energy with specialized low-noise, subsonic velocity. This specialized load features Hornady’s legendary eXtreme Terminal Performance (XTP) jacketed hollow point projectile, which utilizes precise jacket serrations and varying jacket wall thicknesses to ensure reliable, symmetrical mushrooming without tearing apart at moderate speeds. Engineered to travel below the speed of sound at an optimized 1,050 FPS muzzle velocity, it effectively eliminates the sharp sonic boom crack, making it a premier training or field round when paired with a suppressed sidearm or a 10mm pistol-caliber carbine. The massive 200-grain weight provides a remarkably high sectional density and superior momentum, driving deep straight-line penetration through tough target barriers or wild game hides while maintaining a controlled 1.5x expansion pattern. Carefully packaged in a 20-round retail box, this custom-grade factory ammunition utilizes exceptionally clean-burning, flash-suppressed propellants and reloadable boxer-primed brass cases to supply handload-level shot-to-shot consistency. Hornady Subsonic 10mm Auto 200gr XTP Handgun Ammunition Box of 20 Rounds 91269