Experience unmatched stopping power with Underwood Xtreme Penetrator Handgun Ammunition in .357 Magnum. This 140 grain solid copper round achieves a blistering velocity of 1550 fps, making it a top choice for serious shooters. Featuring a unique CNC machined design, this ammo maximizes penetration with impressive hydraulic performance, resulting in a larger permanent wound column. The blunt nose ensures effective energy transfer and reliable feeding in your magazine. Perfect for self-defense and tactical situations, this environmentally friendly, lead-free ammunition delivers precision and power on every shot. Packaged in a box of 20 rounds, it’s a must-have for your firearm arsenal.