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HSM's Cowboy Action .357 Magnum ammunition is designed for authentic cowboy-style shooting experiences. Loaded with a 158 grain semi-wadcutter (SWC) hard lead bullet, this round offers moderate pressures suitable for use in both modern and vintage firearms. With a muzzle velocity of 1175 fps and muzzle energy of 484 ft-lbs, it provides reliable performance for target shooting and cowboy action competitions. Each box contains 50 rounds of new production, non-corrosive ammunition with reloadable brass cases.

Product Highlights:

Specifications
Manufacturer	HSM Ammunition
Caliber	.357 Magnum
Bullet Weight	158 grains
Bullet Type	Semi-Wadcutter (SWC)
Muzzle Velocity	1175 fps
Muzzle Energy	484 ft-lbs
Casing Material	Brass
Rounds Per Box	50
Boxes Per Case	10
Application	Target Shooting, Cowboy Action
Reloadable	Yes
Country of Origin	United States

Key Features:

The HSM .357 Magnum Cowboy Action 158gr SWC Ammo offers impressive performance characteristics that make it an excellent choice for target and cowboy action shooting. Here's a breakdown of its key features:

Bullet Type	Semi-Wadcutter (SWC) Provides excellent accuracy and clean hole punching in targets
Bullet Weight	158 grains Optimal weight for .357 Magnum Cowboy Action shooting
Muzzle Velocity	1175 fps Moderate velocity for reduced recoil and improved control
Muzzle Energy	484 ft-lbs Sufficient energy for target shooting and Cowboy Action competitions
Casing	Brass Reloadable, non-corrosive, boxer primed

Applications & Use Cases:

Cowboy Action Shooting: Specifically designed for Cowboy Action shooting competitions and events.
Target Practice: Ideal for target shooting and plinking with .357 Magnum revolvers.
Historical Firearm Use: Suitable for use in cowboy era firearms due to its moderately lowered pressures.
Recreational Shooting: Perfect for casual shooting sessions with 'Guns that Won the West' or favorite TV and movie cowboy hero replicas.
Training: Excellent choice for training and improving marksmanship with .357 Magnum revolvers.

Pros and Cons:

Pros

✔ Cowboy Action Specific: Designed for Cowboy Action shooting, providing authentic performance for historical firearms.
✔ Moderate Velocity: 1175 fps muzzle velocity offers reduced recoil while maintaining effectiveness.
✔ Semi-Wadcutter Bullet: 158gr SWC bullet design creates clean, full-diameter holes in paper targets.
✔ Reloadable Brass Cases: Boxer-primed brass cases allow for reloading, increasing value for shooters.
✔ Versatile Use: Suitable for both competitive Cowboy Action shooting and recreational target practice.

Cons

✘ Limited Application: Primarily designed for Cowboy Action shooting, may not be ideal for self-defense or hunting.
✘ Lead Bullet: Hard cast lead bullet may not be suitable for use at indoor ranges with lead restrictions.
✘ Moderate Energy: 484 ft-lbs of muzzle energy may be less than full-power .357 Magnum loads.
✘ Specialized Load: May not be as readily available as more common .357 Magnum ammunition types.

About HSM Ammunition:

HSM Ammunition, also known as Hunting Shack Munitions, is a family-owned and operated company based in Stevensville, Montana. Founded in 1968 by Mitch and Jeanne Hogenson, HSM has grown from a small reloading business to a respected manufacturer of high-quality ammunition. The company prides itself on producing 100% American-made products, with all components sourced from U.S. suppliers. HSM is known for its attention to detail and commitment to quality, hand-inspecting every round before it leaves their facility. Their product line includes a wide range of calibers and loadings, from cowboy action loads to high-performance hunting ammunition. HSM's dedication to craftsmanship and innovation has earned them a loyal following among hunters, competitive shooters, and firearms enthusiasts across the country.

Frequently Asked Questions:

Q: What is the primary use for HSM .357 Magnum Cowboy Action 158gr SWC Ammo?

A: This ammunition is primarily designed for Cowboy Action shooting. It's ideal for use in formal sanctioning organizations for Cowboy Action events or for recreational shooting with 'Guns that Won the West' style firearms. The lower pressure load makes it suitable for use in both modern and vintage revolvers chambered in .357 Magnum.

Q: What are the ballistic specifications of this ammunition?

A: The HSM .357 Magnum Cowboy Action ammunition features a 158 grain Semi-Wadcutter (SWC) bullet. It has a muzzle velocity of 1175 fps (feet per second) and generates 484 ft-lbs of muzzle energy. These specifications provide reliable performance for target shooting and competition use.

Q: How many rounds come in a box and case of this ammunition?

A: This HSM Cowboy Action ammunition comes in boxes of 50 rounds each. A full case contains 10 boxes, totaling 500 rounds of ammunition.

Q: Is this ammunition reloadable?

A: Yes, this ammunition is reloadable. It features boxer-primed brass cases, which are suitable for reloading. This allows shooters to reuse the brass casings, potentially reducing long-term ammunition costs for frequent shooters.

Q: What type of bullet does this ammunition use?

A: This ammunition uses a 158 grain Semi-Wadcutter (SWC) bullet. The SWC design is popular in Cowboy Action shooting for its flat nose profile, which creates clean, round holes in paper targets, making scoring easier in competition settings.

Q: Is this ammunition corrosive?

A: No, this ammunition is non-corrosive. HSM uses modern, non-corrosive primers in this Cowboy Action line, which helps to protect your firearm from corrosion and makes cleaning easier after use.

HSM .357 Magnum Cowboy Action 158gr SWC Ammo

HSM Ammo