Underwood .458 SOCOM 350gr FMJ 20-Round Box

Description

The .458 SOCOM is a purpose-built cartridge for AR-15 platforms, delivering stopping power that rivals the legendary .45-70 in a modern, semi-auto package. Underwood's 350-grain FMJ load gives you 2116 foot-pounds of muzzle energy at 1650 feet per second, putting serious pressure downrange at close-to-medium ranges where this round excels.

What Makes the Underwood 350gr FMJ Work

Full metal jacket bullets don't expand, but that's the whole point here. The flat-nose design ensures consistent penetration through dense cover and heavy game, maintaining forward velocity without tumbling. This load develops its reputation on hogs and medium-to-large game where controlled, deep penetration matters more than rapid expansion. At typical hunting ranges under 150 yards, the ballistics are frankly brutal. You're dealing with a round that hits like a sledgehammer and doesn't lose effectiveness in brush or at slight angles through heavy animals.

Underwood's Field-Tested Reliability

Every Underwood round gets tested in real-world rifles with real-world conditions. They use flash-suppressed powder to keep your vision intact if you need to follow up in lower light. The brass cases are new production, boxer-primed, and completely reloadable, which matters if you want to stretch your budget on rounds that cost a bit more per shot than typical rifle ammo. Non-corrosive, so you're not dealing with cleanup headaches after a range day or hunt.

What You're Working With

Twenty rounds per box. The 350-grain bullet weight sits in that sweet spot for modern .458 SOCOM rifles with standard 1-14 twist barrels. Magazine capacity depends on your setup, but most standard AR magazines will feed these flawlessly. This is the straightforward load for function testing, hunting prep, or range time when you want to train with the exact ballistics your rifle will see in the field.