Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, lifelong hunter.
The Remington High Performance Rifle line delivers the 45-70 Government 300 grain jacketed hollow point — a load engineered for controlled expansion on large game at woods ranges. The 45-70 Government cartridge, standardized in 1873 for the Springfield Trapdoor rifle, remains relevant in modern lever guns and break-actions because it generates substantial energy at moderate velocities. At 1810 feet per second from a 24-inch test barrel, the 300-grain JHP produces 2182 foot-pounds of muzzle energy and a flat enough trajectory for shots out to 150 yards on whitetail, black bear, and feral hogs.
Built for the Box
Each round uses a jacketed hollow point bullet with a G1 ballistic coefficient of 0.213. The hollow cavity initiates expansion on impact, transferring energy into the wound channel while the copper jacket controls fragmentation. Brass cases carry boxer primers and non-corrosive powder, making spent hulls reloadable for shooters who handload. Remington produces this ammunition in the United States, maintaining the green-box branding that hunters have recognized since the mid-20th century.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 45-70 Government |
| Bullet weight | 300 grains |
| Bullet type | Jacketed Hollow Point |
| Muzzle velocity | 1810 fps |
| Muzzle energy | 2182 ft-lbs |
| G1 ballistic coefficient | 0.213 |
| Test barrel length | 24 inches |
| Rounds per box | 20 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Lead-free | No |
| Intended use | Hunting |
| Country of origin | United States |
| Manufacturer | Remington |
This load fits any firearm chambered in 45-70 Government, including Marlin 1895, Henry H010, and Ruger No. 1 rifles. Verify that your rifle’s action is rated for modern smokeless pressures before firing — some antique Trapdoor Springfields are designed only for black-powder loads.
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 rules of firearm safety on every range trip.
- Verify current state and local ammunition storage laws in your jurisdiction.
- This ammunition contains lead. Per California Proposition 65, exposure may cause cancer or reproductive harm. Wash hands after handling and use adequate ventilation when firing indoors.
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