Underwood Ammo ammunition in 10mm (brand part no. 248) is a hunting-handgun load built for deep penetration on tough game. Underwood Ammo manufactures this load to consistent tolerances, so every box performs the same as the last. At the heart of this load is the 200 gr bullet, matched to the 10mm platform shooters already run. In our handgun ammunition lineup, this is the Underwood Ammo load built for that job.

Key Specifications

• The caliber is 10mm, a caliber that has taken game across North America for generations.
• The bullet weighs 200 gr, sized for the terminal performance this load is built around.
• The case is Nickel-Plated Brass, standing up to repeated firing and easy extraction.
• Muzzle velocity is rated at approximately 1250 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 $1.28 per round, a reasonable cost for this level of quality.
• The box ships at approximately 0.86 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.
• The hard cast lead flat-nose bullet is built for maximum penetration through heavy muscle and bone, a favorite for woods carry, deep-penetration hunting, and bear defense.

Frequently Asked Questions

How many rounds come in a box? Each box holds 20 rounds of 10mm.

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

How fast does this 10mm load run? It’s rated at approximately 1250 fps at the muzzle, giving a sense of the energy and trajectory to expect.

Buy the Underwood Ammo 10mm 200 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.