HSM Cowboy Action .357 Magnum 158 gr SWC Hard Lead — 50 rd Box

UPC: 837306000850 MPN: N/A

HSM Cowboy Action ammunition brings traditional-style .357 Magnum cartridges to shooters who use vintage and modern revolvers and lever rifles. The HSM Cowboy Action .357 Magnum 158 gr semi-wadcutter (SWC) hard lead load is built on brass, boxer-primed cases and is intended to run at moderately-lowered pressures suitable for cowboy-era firearms. Barrel length and finish details are not provided by the manufacturer and are listed as unspecified. This listing is for one factory-sealed 50-round box; cases are also commonly packaged 10 boxes per case when sold in bulk.

• Caliber: .357 Magnum
• Bullet weight: 158 grains
• Bullet type/construct: Semi-wadcutter (SWC), hard lead
• Muzzle velocity: 1175 fps (manufacturer data)
• Muzzle energy: 484 ft·lbs (manufacturer data)
• Case material: Brass, boxer-primed
• Rounds per box: 50
• Boxes per case: 10 (where sold by case)
• Reloadable: Yes (reloadable brass cases)
• Intended application: Target shooting / cowboy action-style shooting

Why Choose HSM

• HSM (Hunting Shack DBA HSM Munitions) is known for producing a variety of traditional-style loads aimed at shooters using legacy firearms; these loads emphasize consistent manufacturing and traditional bullet designs.
• The Cowboy Action series is loaded to be compatible with cowboy-era pistols and rifles, with semi-wadcutter hard-lead bullets favored for target performance and period-correct profiles.
• Purchasing factory-new, brass, boxer-primed ammunition ensures you receive reloadable cases and product labeling from the manufacturer; this listing reflects a sealed 50-round box configuration.

Packaging

What you receive: one factory-sealed HSM-labeled box containing 50 rounds of .357 Magnum 158 gr SWC hard-lead ammunition. The rounds are in brass, boxer-primed cases and are reloadable. No additional accessories are included. If ordering by case, product is commonly packed as 10 boxes per case (500 rounds total).

Why Choose PMA Customs?

• Curated Parts: Every component in a PMA firearm undergoes rigorous inspection and testing. With over a decade of experience, we meticulously select and integrate only quality parts, ensuring unparalleled reliability when it matters most.
• Quality Without Markup: We leverage our manufacturing capabilities and reputable sourcing to deliver exceptional firearms without unnecessary markups. Each product is hand-assembled with stringent quality checks at every stage, guaranteeing superior craftsmanship.
• American Made & Veteran Owned: As a Veteran Owned and Operated business, all PMA Customs firearms are proudly built and assembled in our Georgia facility, utilizing components made here in the USA.

Warranty: All Pickett’s Mill Armory firearms, assemblies, and components are backed by our limited lifetime manufacturer’s warranty!