Hornady American Gunner 10mm ammunition (part no. 91224) loads a 155-grain XTP bullet, built for self defense/EDC carry. The XTP hollow point cavity expands consistently across a wide range of impact velocities. The brass case is built for reliable extraction and consistent ignition, box after box. It is a natural fit for concealed carry and home-defense guns where terminal performance is the whole point, sold here as handgun ammunition built to consistent specs.

Key Specifications

• The chambering is 10mm, so double-check it against your firearm’s barrel markings before ordering.
• The bullet weighs 155 grains, a weight that drives trajectory, recoil, and terminal energy downrange.
• The bullet is a XTP, a projectile built to expand rather than pass through.
• The scored jacket controls how far the petals peel back, balancing expansion against penetration depth.
• The case is Brass, which extracts and ejects cleanly, round after round.
• Brass cases can be resized, reprimed, and reloaded, stretching the cost of practice ammunition over multiple firings for handloaders.
• Each box holds 20 rounds, the count you are ordering on this page.
• It’s also sold by the case, 200 rounds across 10 boxes, for shooters who buy ahead.
• The box ships at 0.8 lbs.

Frequently Asked Questions

Is the XTP bullet designed to expand? Yes, this bullet style is engineered to open reliably on impact, increasing the wound channel compared to a non-expanding bullet of the same weight.

What is this 10mm load best suited for? It is built for concealed carry and home-defense guns where terminal performance is the whole point.

Buy the Hornady American Gunner 10mm 155gr XTP Ammunition, 20-Round Box

Hornady built this load with a specific job in mind, and the specs above are what you are actually loading into the gun. Whether it is headed for concealed carry and home-defense guns where terminal performance is the whole point, it earns a place in the range bag or the truck box. Order from our Lubbock, Texas gun shop and it ships fast to your door.