Underwood Xtreme Hunter ammunition in .357 Magnum (brand part no. 913) is built for hunters and woods-carry shooters who need heavy penetration from a revolver. Underwood manufactures this load to consistent tolerances, so every box performs the same as the last. At the heart of this load is the 120 gr bullet with an Xtreme Hunter design, matched to the .357 Magnum platform shooters already run. In our handgun ammunition lineup, this is the Underwood load built for that job.

Key Specifications

• The caliber is .357 Magnum, a proven big-game cartridge with decades of field results behind it.
• The bullet weighs 120 gr, sized for the terminal performance this load is built around.
• The projectile is an Xtreme Hunter design, built for straight-line penetration on game rather than a mushrooming expansion.
• The case is Nickel-Plated Brass, standing up to repeated firing and easy extraction.
• Muzzle velocity is rated at approximately 1700 fps, keeping the load fast enough for dependable terminal performance.
• Each box holds 20 rounds, a practical quantity for a solid range session without restocking mid-way.
• Cases ship 10 boxes to a case, letting range regulars order in volume without repeat checkout.
• Cost works out to about $2.13 per round, a reasonable cost for this level of quality.
• This is a centerfire cartridge, ignited by a replaceable primer rather than a rimfire priming ring.
• The Xtreme Hunter bullet is a lead-free, deep-penetrating hunting design built for reliable straight-line penetration on game.
• Underwood loads this round to the brand’s typically higher velocity standard for a flatter trajectory and more delivered energy.

Frequently Asked Questions

How many rounds come in a box? Each box holds 20 rounds of .357 Magnum.

Is the brass reloadable? The case is nickel-plated brass, which handloaders can typically resize and reload for repeat use.

How fast does this .357 Magnum load run? It’s rated at approximately 1700 fps at the muzzle, giving a sense of the energy and trajectory to expect.

Buy the Underwood Xtreme Hunter .357 Magnum 120 gr, 20-Round Box

Whether it’s a weekend at the range or opening morning, this is the load that shows up and does its job. Order from our Lubbock, Texas gun shop and it ships fast to your door.