The Hornady Custom 10mm Auto 155 gr HP XTP (Hornady part no. 9122) is a 20-round box of 10mm Auto ammunition loaded with a 155-grain HP XTP bullet. Hornady publishes 1410 fps and 684 ft-lb at the muzzle for this load from a 5-inch test barrel, and 1090 fps by 100 yards. It belongs to the Hornady Custom handgun line, which the company describes as loaded for shooters who want supreme accuracy and maximum knock down power. Hornady says every round is hand inspected before packaging, and that it builds Custom ammunition to give shooters the advantage of hand-loaded accuracy in a factory load. For a firearm chambered in 10mm Auto, that gives you a documented set of ballistics for this exact bullet weight before you ever reach the range.

Key Specifications

• The chambering is 10mm Auto, so this box is for firearms chambered in that cartridge.
• The bullet weighs 155 grains, the weight that sets this load’s published velocity and energy.
• The bullet is an HP XTP, the bullet type Hornady lists for this item.
• Each box holds 20 rounds, so the count on the page is the count you receive.
• Muzzle velocity is 1410 fps from a 5-inch test barrel, per Hornady’s published table.
• Muzzle energy is 684 ft-lb from the same 5-inch test barrel.
• Velocity at 100 yards is 1090 fps, showing how much speed the bullet carries downrange.
• Energy at 100 yards is 409 ft-lb, what remains of the muzzle figure at that distance.
• The case brass is made or selected by Hornady for reliable feeding, corrosion resistance, proper hardness and the ability to withstand maximum chamber pressures.
• Every round is hand inspected before packaging, Hornady’s stated quality-control step for Custom ammunition.

Frequently Asked Questions

How does the 155-grain 10mm Auto load differ from the 180-grain version? The 155-grain load uses an HP XTP bullet and publishes 1410 fps and 684 ft-lb at the muzzle from a 5-inch test barrel.

What velocity and energy does this 10mm Auto load publish? Hornady lists 1410 fps and 684 ft-lb at the muzzle from a 5-inch test barrel, and 1090 fps and 409 ft-lb at 100 yards.

How many rounds come in this box? Each box holds 20 rounds of 10mm Auto loaded with the 155-grain HP XTP bullet.

Buy the Hornady Custom 10mm Auto 155 gr HP XTP, 20-Round Box

Whether you are checking it against the published numbers or stocking up for the range, order from our Lubbock, Texas gun shop. See the full handgun ammunition lineup, including more from Hornady, for fast shipping to your door.