Underwood 357 Sig 115gr Nosler ASP JHP Ammo – 10 Box Case

Description

The 357 Sig cartridge was built with one job in mind, to squeeze 357 Magnum level performance out of a semi-auto pistol, and Underwood's 115gr ASP load leans into that reputation hard. This bottlenecked round already runs at higher pressure than most service calibers, and pairing it with a bullet designed specifically for controlled expansion makes it a serious option for anyone running a 357 Sig platform, whether that's a converted 40 caliber Glock or a dedicated Sig P229.

The ASP Bullet in This Underwood 357 Sig Load

Nosler's Assured Stopping Power bullet uses deep skives cut into the jacket mouth, which sounds technical but the idea is simple. Those precise cuts give the jacket a predictable place to peel back, so expansion happens quickly and consistently instead of varying shot to shot. That translates to solid energy transfer without the bullet punching straight through and losing most of its effectiveness along the way.

What Comes in the Underwood 118 Case

This listing covers a full case, ten boxes of twenty rounds each for 200 rounds total. Every round is loaded in nickel-plated brass using Underwood's Ducta-Bright 7a process, which was developed to solve the old complaint about nickel casings cracking or limiting reload life. The brass is boxer primed and reloadable, and the flash suppressed powder keeps your sight picture clear if you ever need to run this in low light.

Velocity and Energy Out of the 115gr ASP

Underwood lists this load at roughly 1550 fps at the muzzle with energy right around 613 ft-lbs, numbers that sit at the upper end of what factory 357 Sig ammunition typically produces. That kind of speed keeps the trajectory flat and gives the round the flatter, harder hitting reputation the caliber was built around back in the 90s. New production, non-corrosive, and consistent from box to box, this is a solid pick for range work that doubles as practice for the same ammo you'd trust for carry or duty use.