The Hornady American Gunner Pistol Ammo 10mm 155 gr. XTP is a shooter-friendly load from Hornadys American Gunner series that brings a balance of terminal performance and flat-shooting ballistics to duty, defensive, and range sessions, with the 155 grain XTP hollow point delivering consistent expansion and weight retention at a muzzle velocity around 1410 fps. If you run a 1911-style 10mm or any full-size 10mm service pistol, this round feeds reliably thanks to quality brass casings and conventional velocities that cycle common semi-autos, and the match-grade XTP profile gives target shooters the accuracy they want while providing hunters and varminters controlled energy transfer for small game. The cartridge is versatile for practical training drills, carry scenarios where reliable hollow point performance matters, and backcountry trips where a stout 10mm can handle both defense and light hunting tasks; because Hornady loads American Gunner to industry-standard pressures with consistent primers and propellant selection, point-of-impact shifts are minimized between lots, so follow-up shots and sighting-in remain predictable. For shooters seeking a proven 10mm defensive and range round with a reputable XTP hollow point profile, this Hornady offering is an easy, confidence-building choice.