![]() ![]() Solid copper Xtreme Defense bullets meet the criteria of states and jurisdictions calling for lead free projectiles. Underwood Ammunition 357 Sig 115 Grain Lehigh Xtreme Penetrator Lead-Free Box of 20 Muzzle Velocity, 1450 Feet Per Second Muzzle Energy, 537 Foot Pounds. Xtreme Defense bullets are currently available in the following caliber diameters. Underwood 357 Sig Ammunition UW645 115 Grain Xtreme Penetrator 20 Rounds. What you get is a self-defense bullet that will shoot through barriers without deformation or trajectory change and creates a larger permanent wound cavity coupled with the desired 18 inches of penetration. The result of the Xtreme Defense is a permanent wound cavity that is two to four times greater than what a flat or round nose bullet generates and often larger than traditional or solid copper expanding bullets. This very rapid increase in fluid flow creates cavitation and massive tissue damage away from the projectile equivalent to those of the best hollow points on the market. The Fluid Transfer’s radial flutes force the hydraulic energy inward and then as the energy is restricted, it accelerates outward creating high pressure spikes severely damaging surrounding tissue. Penetrating barriers such as drywall or heavy clothing prior to impacting the intended target doesn’t have the potentially negative effect on the Xtreme Defense that it does to conventional hollow point bullets. Additionally, the bullet is solid copper, able to overcome barriers to penetration, is environmentally friendly and does massive tissue damage on impact. ![]() at an advertised 1550 feet per second for the model 60. The ammo I chose is the Underwood Xtreme Penetrator in.357 Magnum 140 gr. 357 sig (making well over 100 ft/pnds more energy than the 9mm) might be useful for barrier penetration, so I like that option even if I cannot dream up a situation where I'd use them. Like the Xtreme Penetrator, the progressive nose geometry allows for deep, straight penetration while creating a permanent wound cavity diameter exceeding that of most expanding bullets. Lehigh Defense Xtreme Penetrator Bullets 38 Caliber (357 Diameter) 140 Grain Solid Copper Fluid Transfer Monolithic Lead-Free Box of 50. The material: pork ribs, hoodie, and denim. The first six rounds in my spare magazine are the Extreme Penetrator version. The advanced technology Xtreme Defense Fluid Transfer Monolithic (XD FTM) is changing the way self-defense bullets are perceived. 45-70 Government 305 gr Xtreme Penetrator Solid Monolithic Hunting & Self Defense - 20 Round Box. ![]()
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