Last reviewed: 2026-04-17 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
For hunters who carry a 500 S&W Magnum revolver into bear country or after wild boar, the Buffalo Bore 440-grain high-velocity flat nose load brings the energy and penetration required to anchor heavy game. This 500 S&W Magnum ammo produces 1625 feet per second at the muzzle and delivers 2579 foot-pounds of energy — numbers that place it among the most powerful production handgun cartridges available. Buffalo Bore loads every round to maximum SAAMI specification using a heavy flat-nose projectile designed to drive deep through muscle and bone.
Load Profile
Buffalo Bore manufactures this ammunition for modern, strong-action revolvers — primarily the Smith & Wesson X-Frame platform and similar designs engineered to handle full-power magnum loads. The 440-grain flat nose bullet achieves its velocity through a high-pressure powder charge and a case filled to capacity. Brass cases carry Boxer primers for reloading, and every round is loaded fresh — not surplus, not reman. The flat nose profile maximizes frontal area on impact, creating a wide wound channel and resisting deflection when striking heavy bone or passing through dense tissue.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 500 S&W Magnum |
| Bullet weight | 440 grains |
| Bullet type | Flat Nose |
| Muzzle velocity | 1625 fps |
| Muzzle energy | 2579 ft-lbs |
| Rounds/box | 20 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Hunting |
| Manufacturer | Buffalo Bore |
This load sits at the upper end of the 500 S&W Magnum performance envelope and requires a revolver in excellent mechanical condition with no signs of frame stretch, cylinder endshake, or timing issues. Verify your firearm is rated for full-power magnum loads before chambering. You can find more options for large-bore revolver cartridges in our 500 S&W ammo category.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Follow the four universal rules of firearms safety at all times — treat every firearm as loaded, never point at anything you do not intend to shoot, keep your finger off the trigger until ready to fire, and know your target and what is beyond it.
- Verify current federal, state, and local laws governing ammunition purchase, possession, and transport in your jurisdiction before ordering.
- WARNING: This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands thoroughly after handling ammunition and before eating or drinking. For more information, visit www.P65Warnings.ca.gov.
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