Last reviewed: 2026-04-17 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
When bear country demands terminal performance from a revolver, the Grizzly Cartridge Bear Load 45 Colt +P 335-grain hard cast load answers. This is a 45 Colt (Long Colt) +P cartridge — a purpose-built hunting round loaded to higher-than-standard pressure and velocity for use in modern, +P-rated revolvers with cylinder and frame strength to handle the additional stress. The 335-grain Cast Performance Lead Long Wide Nose Gas Check (LWNFGC) bullet exits at 1175 feet per second and delivers 1027 foot-pounds of energy at the muzzle, prioritizing penetration over expansion on heavy game.
Built for the Box
Grizzly Cartridge loads each round with virgin alloy hard cast bullets from Cast Performance, produced in LBT-style molds and heat-treated to resist deformation. The wide flat nose profile creates a broad wound channel without relying on expansion, while the gas check base reduces leading in the bore at +P velocities. Brass cases carry Boxer primers for straightforward reloading. Flash-suppressed powder keeps muzzle signature manageable in low light. Each 20-round box ships non-corrosive and ready to chamber in revolvers rated for +P pressure — verify your revolver’s suitability before firing.
Specs at a Glance
| Spec | Value |
|---|---|
| Caliber | 45 Colt (Long Colt) +P |
| Bullet weight | 335 grains |
| Bullet type | Lead Long Wide Nose Gas Check (Cast Performance) |
| Muzzle velocity | 1175 fps |
| Muzzle energy | 1027 ft-lbs |
| Rounds per box | 20 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Hunting |
| Manufacturer | Grizzly Cartridge |
This load sits at the upper end of the 45 Colt pressure spectrum — use it only in revolvers explicitly rated for +P ammunition. Consult your revolver’s manual or contact the manufacturer if you’re unsure. For more options in this chambering, see our full 45 Long Colt ammo selection.
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.
- Treat every firearm as if it is loaded. Keep the muzzle pointed in a safe direction at all times.
- Verify your revolver is rated for +P pressure before firing this ammunition. Consult the manufacturer or a qualified gunsmith if uncertain.
- This ammunition contains lead. Wash hands thoroughly after handling. California Proposition 65 warning applies — see P65Warnings.ca.gov.
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