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HSM's Cowboy Action .357 Magnum loads the round appropriately for what traditional shooting demands. These aren't full-power magnums, and they're not wimpy either. At 1175 feet per second with 485 foot-pounds of muzzle energy, you get enough punch to ring steel and punch paper without beating you or your revolver to pieces over a long match.
Each cartridge uses a hard-cast lead semi-wadcutter bullet designed to cycle smoothly through single-action firearms while delivering reliable, consistent performance. The brass cases come new, non-corrosive, with boxer primers, and they're set up for reloaders. This matters if you shoot enough to make reloading worthwhile, and cowboy action shooters often do.
Moderate pressure loads make these rounds safe in authentic vintage-era firearms that were never designed to handle modern magnum power levels. But HSM doesn't skimp on the load—1175 fps from a standard revolver barrel is respectful velocity that balances control with real performance. Groups stay tight, recoil stays manageable, and follow-up shots come fast without punishment.
The semi-wadcutter bullet profile is a proven design for competitive shooting. It punches clean, visible holes through paper, cuts scoring rings crisply, and performs reliably shot after shot. Competitors and casual shooters both appreciate a bullet that does what it's supposed to do without surprises. HSM loads these tight enough that you'll notice consistency round to round.
Yes. HSM specifically loads these rounds to traditional pressures that are safe for cowboy-era firearms and authentic vintage revolvers. Modern single-actions can handle this load without issue, and the moderate recoil means you can shoot longer without fatigue. That said, always verify your firearm is in sound condition before shooting any ammunition.
Yes. The brass cases are new production with boxer primers, making them perfect for handloading. Since cowboy action often involves shooting large volumes, many competitors reload to keep costs reasonable over time. These cases are durable and perform reliably through multiple reloading cycles.
This load runs about 225 fps slower than standard full-power magnums, cutting recoil significantly while keeping enough energy for reliable performance on paper and steel targets. You're trading maximum velocity for controllability and faster follow-up shots, which is the whole idea behind cowboy action ammunition.
Yes. The SWC profile cuts clean, well-defined holes through paper targets, making scoring much easier and providing better feedback on shot placement. This is why SWC bullets have been competition standard for decades in revolver shooting.
| Caliber/Gauge | .357 Magnum |
|---|---|
| Case Material | Brass |
| Cost per Round | 0.74 |
| Grains | 158 gr |
| Length | 5.3000 |
| Manufacturer | |
| Manufacturer Part Number | 3571N |
| Shipping Weight | 1.8 |
| Units per Box | 50 |
| UPC | 837306000850 |
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