Lehigh has introduced a unique and innovative product, the Xtreme Penetrator Fluid Transfer Monolithic (XP FTM) product line, for both handgun and rifles. The progressive nose geometry allows for deep, straight penetration while creating a permanent wound cavity diameter exceeding that of most expanding bullets. To top it off, the bullet is solid copper and is able to overcome barriers to penetration, is environmentally friendly and VERY target unfriendly. 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. The magic happens with the nose design where 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. 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. This results in 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. What you get is a hunting or special application self defense bullet that creates a larger permanent wound cavity coupled with exceptionally deep penetration. Note: These are projectiles only. They are used for loading or reloading empty shell cases. This is not finished ammunition that is ready to fire. Manufacture Item Number 09452220SP Xtreme Penetrator Fluid Transfer Monolithic (XP FTM) Projectile Made for 45 Colt, 454 Casull, 460 S&W .452 Diameter 220 Grain Lead Free Bullet Bullet Material Copper Minimum Impact Velocity (fps) 750 Maximum Muzzle Velocity (fps) 5000 Velocity Sensitivity No Velocity Rating Supersonic Gun Type Handgun Uses Self Defense and Hunting 50 Count per Box