HSM Bear Load (457012N) is a 45-70 Government rifle ammunition load built for hunters, backcountry travelers, and lever-gun shooters who need maximum penetration and decisive stopping power against large and dangerous game at close range. This heavy 45-70 Government hard cast hunting load for bear defense and large game delivers a 430 grain round nose flat point bullet at 1,801 fps with 3,098 ft-lbs of muzzle energy, putting it among the most powerful production 45-70 loads available in a factory box.
Key Features
- Part number: 457012N
- Caliber: 45-70 Government
- Bullet weight: 430 grains
- Bullet type: Round Nose Flat Point (RNFP), hard cast, gas-checked
- Bullet hardness: 15 Brinell
- Muzzle velocity: 1,801 fps
- Muzzle energy: 3,098 ft-lbs
- Casing: Brass
- Primer: Boxer
- Reloadable: Yes
- Rounds per box: 20
- Boxes per case: 25
- Country of origin: USA
Special Features
- The 15 Brinell hard cast lead bullet resists deformation on impact with heavy bone and dense muscle, maintaining its original profile through the full penetration path rather than mushrooming and stopping short of vital organs in large game
- A gas check is crimped to the base of each bullet to protect the lead from hot propellant gases, preventing gas cutting that would erode the base, reduce velocity consistency, and increase leading in the bore
- Temperature-stable propellant powder is matched specifically to the 430 grain bullet weight to deliver consistent velocity across the range of ambient temperatures a hunter encounters from early fall through late season cold
- Premium brass cases are loaded to precise dimensional tolerances that ensure consistent headspace and reliable chambering across the full range of 45-70 lever-action and single-shot platforms, and the brass is fully reloadable for shooters who handload
- HSM loads each round using only American-made components and manufactures this load domestically, giving buyers a traceable, quality-controlled product that meets the demands of professional guides, outfitters, and serious hunters who cannot afford inconsistent ammunition in the field
Practical Benefits
- The 430 grain RNFP bullet at 3,098 ft-lbs drives through the thick hide, heavy bone, and dense muscle of brown bear, grizzly, moose, and bison with the straight-line penetration that expanding bullets cannot guarantee on angled or quartering shots
- The round nose flat point profile feeds smoothly through tubular magazines found in lever-action rifles, eliminating the primer-on-primer contact risk that pointed bullets present in a tube-fed firearm
- The reloadable brass casing gives handloaders a quality starting case for building custom 45-70 loads after the factory rounds are fired, adding long-term value beyond the initial purchase
- This load is well suited for use in strong-action lever guns and single-shot rifles built to handle high-pressure 45-70 loads, making it a natural pairing for platforms like the Henry H10 Protector Carbine, Marlin 1895, and Ruger No. 1
- Whether you are carrying a 45-70 lever gun on a guided bear hunt, packing through brown bear country on a backcountry trip, or building a load-specific inventory for serious large game work, your HSM Bear Load gives you a hard cast, gas-checked round purpose-built for the job
HSM Bear Load (457012N) in 45-70 Government is a dependable option for hunters and backcountry shooters who demand deep penetration, consistent velocity, and hard cast construction from a factory load designed for the largest and most dangerous game on the continent.
| MANUFACTURER | HSM |
| CALIBER | 45-70 GOVT |