Underwood ammunition in .357 Magnum (brand part no. 120) is built for shooters who want dependable, affordable ammunition for high-volume range days. Underwood manufactures this load to consistent tolerances, so every box performs the same as the last. At the heart of this load is the 125 gr bullet with a full metal jacket (fmj) 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, matched to the guns shooters already own and train with.
• The bullet weighs 125 gr, sized for the terminal performance this load is built around.
• The projectile is a Full Metal Jacket (FMJ) design, an affordable, clean-feeding option for high-volume shooting.
• The case is Brass, standing up to repeated firing and easy extraction.
• 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 $2.30 per round, a reasonable cost for this level of quality.
• The box ships at approximately 1.66 lbs, useful for budgeting freight if you’re ordering by the case.
• This is a centerfire cartridge, ignited by a replaceable primer rather than a rimfire priming ring.

Frequently Asked Questions

Is this load good for practice and range training? Yes, this is a .357 Magnum load built for affordable, high-volume range training rather than hunting or defense.

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

Can I order this by the case? Yes, this load ships 10 boxes to a case for shooters who want to order in bulk.

Buy the Underwood .357 Magnum 125 gr Full Metal Jacket, 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.