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The Winchester American Lever line is purpose-built for the rifles that won the West and still dominate hunting camps today. These 45-70 Government loads feature 300-grain jacketed hollow point bullets designed to expand on impact while maintaining deep penetration through heavy game. With a muzzle velocity of 1,880 fps and 2,355 foot-pounds of energy, you get the kind of knockdown power that made this cartridge legendary over 150 years ago.
These rounds burn cleaner than older powders, which means less fouling in your action and barrel. The bullet profile is specifically optimized for smooth feeding in tubular magazines, so you won't have to babysit your rifle between shots. The precision-built jacketed hollow points deliver consistent expansion and penetration at the velocities these loads produce, which matters when you're counting on one clean shot.
Whether you're running a Marlin 1895, Winchester 1886, or Henry rifle, these cartridges feed reliably and perform predictably. The 300-grain weight is the sweet spot for the 45-70 in modern lever guns—heavy enough to carry serious terminal performance to 150 yards and beyond, but not so heavy that it compromises the smooth cycling these rifles are known for. Factory ammunition loaded to safe pressures means you can trust these rounds in your favorite rifle without worry.
These are boxer-primed brass cases that take a standard large rifle primer, so if you want to reload, you've got quality brass worth saving. Non-corrosive and non-magnetic, the ammunition feeds cleanly and shoots clean. At the range or in the field, Winchester ammunition has been trusted for over a century because it simply works.
Winchester loads this ammunition to safe factory pressures suitable for most modern lever-action and single-shot rifles. However, vintage Trapdoor Springfields and some early reproductions are built for lower pressures, so check your rifle's manual or consult a gunsmith if you own an antique or replica. Modern production Marlin 1895s, Henry rifles, and Winchester 1886 replicas handle these loads without issue.
The 45-70 is most effective under 150 yards with minimal bullet drop, where its heavy 300-grain bullet delivers maximum terminal performance. You can make accurate shots beyond that distance if you understand the bullet's pronounced drop, but this isn't a long-range cartridge by modern standards. It excels in close-to-medium range hunting scenarios where the big bore's stopping power shines.
Yes, these are boxer-primed brass cases that are reloadable. The non-corrosive primers and quality brass make them excellent candidates for handloading, which many 45-70 shooters do to customize velocity and bullet selection for their specific rifle and hunting needs.
The jacketed hollow point design expands reliably on impact while the thick jacket maintains penetration through bone and muscle. For deer, elk, and similar game at typical lever-action ranges, JHP ammunition delivers the balance of expansion and deep wound channels that make for clean, ethical kills. The 300-grain weight and 1,880 fps velocity of this load generates sufficient energy for effective terminal performance on medium and large game.
| Bullet Weight (Grains) | 300 |
|---|---|
| Caliber/Gauge | .300 AAC Blackout |
| Case Material | Brass |
| Cost per Round | 0.49 |
| Grains | 147Gr |
| Manufacturer | |
| Manufacturer Part Number | W4570AL |
| Model | |
| Product Type | Full Metal Jacket |
| Units per Box | 125 |
| UPC | 020892030527 |
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