The Hornady Custom .454 Casull 300 gr XTP Mag (Hornady part no. 9150) is a 20-round box of .454 Casull ammunition loaded with a 300-grain XTP Mag bullet. Hornady publishes 1650 fps and 1813 ft-lb at the muzzle for this load from a 7.5-inch test barrel, and 1348 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. If your .454 Casull firearm shoots this weight well, the published numbers make it easy to compare against other loads.

Key Specifications

• The chambering is .454 Casull, so this box is for firearms chambered in that cartridge.
• The bullet weighs 300 grains, the weight that sets this load’s published velocity and energy.
• The bullet is an XTP Mag, the bullet type Hornady lists for this item.
• Each box holds 20 rounds, so the count on the page is the count you receive.
• The case brass is made or selected by Hornady for reliable feeding, corrosion resistance, proper hardness and the ability to withstand maximum chamber pressures.
• Muzzle velocity is 1650 fps from a 7.5-inch test barrel, per Hornady’s published table.
• Muzzle energy is 1813 ft-lb from the same 7.5-inch test barrel.
• Velocity at 100 yards is 1348 fps, showing how much speed the bullet carries downrange.
• Energy at 100 yards is 1210 ft-lb, what remains of the muzzle figure at that distance.
• Powders and primers are matched to the load, with powders loaded for consistent pressure and velocity from lot to lot.

Frequently Asked Questions

How is the 300-grain .454 Casull load different from the 240-grain version? Both use Hornady’s XTP Mag bullet in a 20-round box; this one carries 300 grains and publishes 1650 fps and 1813 ft-lb at the muzzle from a 7.5-inch test barrel.

How many rounds come in this box? Each box holds 20 rounds of .454 Casull loaded with the 300-grain XTP Mag bullet.

What velocity and energy does this .454 Casull load publish? Hornady lists 1650 fps and 1813 ft-lb at the muzzle from a 7.5-inch test barrel, and 1348 fps and 1210 ft-lb at 100 yards.

Buy the Hornady Custom .454 Casull 300 gr XTP Mag, 20-Round Box

This 300-grain XTP Mag load comes from Hornady and is one of many options in our handgun ammunition lineup. Order from our Lubbock, Texas gun shop and it ships fast to your door.