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HSM Magnuforce Subsonic 45-70 ammunition is built around what rifle shooters actually need: serious bullet weight, reduced noise and recoil compared to full-velocity loads, and the kind of penetration that matters when it counts. This load pairs a 550-grain hard cast long flat nose bullet with Hi-Tek coating for a clean-shooting experience that won't foul your barrel like traditional lubed lead.
These run about 1,000 feet per second out of an 18.5-inch barrel, which is subsonic in most rifles. The flat nose design is purpose-built for reliable feeding in lever-action rifles and works equally well in modern bolt guns and single-shots. The heavy bullet delivers the bone-breaking penetration the 45-70 is known for, making this load suitable for hunting applications where deep penetration matters or for serious target work where you want a load that shoots clean.
The Hi-Tek polymer coating bonds to the lead bullet and eliminates the mess of traditional wax lubricants. You get a cleaner range, easier cleanup, and virtually no barrel leading. These are new production loads built on Starline brass with boxer primers, so they're reloadable for folks who want to extend their shooting budget.
These 45-70 cartridges are loaded to safe pressures and function reliably in modern rifles with a 1 in 20 twist or faster. They feed smoothly from magazine tubes, chamber with consistent reliability, and handle the real-world shooting scenarios they're designed for. The overall length of 2.530 inches accommodates standard lever-action magazine systems.
Yes. These are designed for modern lever-action, bolt-action, and single-shot rifles. They feed reliably through magazine tubes and require a 1-in-20 rifling twist or faster. The flat nose profile is engineered for smooth feeding in lever guns, so you won't experience jams or feeding issues typical of some ammunition.
The Hi-Tek polymer coating bonds directly to the hard cast lead and eliminates barrel fouling that comes with traditional wax-lubed bullets. This means cleaner shooting, less smoke, easier barrel cleanup, and virtually zero lead buildup even after extended shooting sessions. Your range sessions stay cleaner and your maintenance time drops significantly.
The 550-grain hard cast bullet at subsonic velocity delivers exceptional penetration for hunting applications where that matters. The flat nose design maximizes energy transfer and provides the kind of deep penetration the 45-70 is famous for. They're equally effective for target work where you want reduced recoil and cleaner shooting.
Yes. These use boxer-primed Starline brass, which is designed for reloading and will last through multiple reloading cycles. That means you can reload these cases yourself once you've shot through them, stretching your ammunition dollar and extending your shooting budget.
| UPC | 810742029760 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 457016N |
| Caliber/Gauge | .45-70 Government |
| Grains | 550 gr |
| Length | 6 |
| Units per Box | 20 |
| Cost per Round | 2.70 |
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