Description
This is purpose-built ammunition for the magnum revolver hunter. The 300-grain XTP Mag bullet is engineered to handle the high velocities and extreme pressures of the .454 Casull while delivering reliable terminal performance when it matters most.
What Makes the XTP Mag Bullet Different
Hornady's XTP Mag design includes a thicker jacket and stronger core than standard XTP rounds, specifically made to withstand heavy impact without fragmenting. Six precision-engineered serrations divide the bullet into symmetrical sections, allowing controlled expansion at any velocity. The result is uniform mushrooming and deep penetration, whether you're hunting at typical handgun ranges or pushing the limits of what a large-bore revolver can do.
Hornady Custom Ammunition Standards
Every round of this ammunition receives hand inspection before packaging to ensure consistent quality. The brass is boxer-primed and reloadable, selected to meet strict standards for reliable feeding, corrosion resistance, and durability under maximum chamber pressures. The powders and primers are matched in each cartridge to deliver consistent velocity and pressure from round to round. This level of care in factory loading rivals quality handloads and produces accuracy most hunters won't need to improve.
Performance You Can Count On
At 1650 fps muzzle velocity with 1813 ft-lbs of energy, this load hits hard and reaches deep. The brass casing is new production and non-corrosive, making these rounds reliable whether you fire them once or save them for the hunt of a lifetime.
Key Specifications
- Caliber: .454 Casull
- Bullet Weight: 300 grains
- Bullet Type: XTP Mag Jacketed Hollow Point
- Muzzle Velocity: 1650 fps
- Muzzle Energy: 1813 ft-lbs
- Case Type: Brass
- Case Primer: Boxer (Reloadable)
- Rounds per Box: 20
- Production Type: New, Non-Corrosive
- Manufacturer: Hornady
- Model Line: Custom
- Manufacturer Part Number: 9150
- UPC: 090255391503
- Ballistic Coefficient (G1): 0.18
- Sectional Density: 0.21
What’s Included
- 20 rounds of .454 Casull 300gr XTP Mag ammunition
Frequently Asked Questions
What's the difference between XTP and XTP Mag bullets?
The XTP Mag features a thicker jacket and stronger core designed to handle the high velocities and pressures of magnum cartridges like the .454 Casull. Standard XTP bullets work fine in smaller calibers, but the Mag version resists fragmentation and provides more consistent penetration in large-bore applications where extreme impact velocities are a factor.
Are these Hornady .454 Casull rounds reloadable?
Yes. The brass cases are boxer-primed and new production, making them reloadable. Hornady selects the brass to meet strict standards for durability and chamber reliability, so it stands up well to multiple reloading cycles when proper technique is used.
What handguns are suitable for .454 Casull ammunition?
The .454 Casull is chambered in select revolvers like the Ruger Super Redhawk, Taurus Raging Bull, and Freedom Arms Model 83, among others. Some lever-action rifles are also made in this caliber. Always verify your firearm is properly chambered before firing any ammunition.
Is this ammo suitable for hunting?
Yes. The 300-grain XTP Mag is purpose-built for medium and large game hunting with a handgun. The controlled expansion and deep penetration of the bullet, combined with the 1813 ft-lbs of energy, makes it well-suited for serious field use where reliable terminal performance is required.






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