Underwood 357 Mag 158gr Bonded - Jhp 20rd 10bx/cs

Underwood 357 Mag 158gr Bonded JHP ammunition delivers serious stopping power for law enforcement, civilian self-defense, and tactical training scenarios. Designed for shooters who demand reliable performance from a revolver or lever-action carbine chambered in .357 Magnum, this bonded hollow-point round bridges the gap between velocity and controlled expansion. Each box contains 20 rounds, and the case format—10 boxes per case—makes it practical for agencies, ranges, and dedicated shooters who require consistent inventory and cost-efficient purchasing.

The 158-grain bonded jacketed hollow-point (JHP) design fuses the lead core to the copper jacket during manufacturing, preventing jacket/core separation under high velocity or heavy barriers. This bonded construction ensures predictable wound channels and deeper penetration than traditional hollow-points, critical when engagement distances and barrier performance matter. The hollow-point cavity is engineered to initiate reliable expansion while maintaining sufficient sectional density to reach vital organs through intermediate barriers—a proven combination in defensive ammunition testing and real-world law enforcement deployment.

This ammunition suits officers and civilians carrying full-frame or medium-frame revolvers, including models like the Smith & Wesson N-frame, Ruger GP100, and similar platforms. The 158-grain projectile weight and bonded construction provide consistent performance across velocity ranges typical of standard-barrel revolvers and longer-barrel carbines, making it versatile for both duty and sport applications. Shooters should verify function in their specific firearm before carry or duty use, as revolver tolerances and chamber dimensions vary—a standard practice for any defensive load selection.