Underwood Ammo ammunition in .429 DE Magnum (brand part no. 170) 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 240 gr bullet with a jacketed hollow point (JHP) design, matched to the .429 DE Magnum platform shooters already run. In our handgun ammunition lineup, this is the Underwood Ammo load built for that job.

Key Specifications

• The caliber is .429 DE Magnum, a caliber that has taken game across North America for generations.
• The bullet weighs 240 gr, sized for the terminal performance this load is built around.
• The projectile is a Jacketed Hollow Point (JHP) design, designed for reliable expansion on game.
• 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.
• The box ships at approximately 1.30 lbs, useful for budgeting freight if you’re ordering by the case.
• Underwood loads this round to a higher-than-standard velocity for its caliber, a hallmark of the brand’s ammunition.

Frequently Asked Questions

Is this a good defensive round in .429 DE Magnum? Yes, the expanding bullet design is built for controlled expansion and reliable stopping power, a common choice for defensive .429 DE Magnum carry.

How many rounds come in a box? Each box holds 20 rounds of .429 DE Magnum.

Buy the Underwood Ammo .429 DE Magnum 240 gr Jacketed Hollow Point, 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.