Features:62 gr. solid copper / lead free projectile 9 - 11 in. of Penetration 2 in. Groupings at 10 yrds 7 Separate Wound Channels Solid Copper / Lead Free 3 - 4 in. Diameter Spread 1250 FPS average (+/ - 10 percent) Precision Machined Maximum expansion through light or heavy clothing as opposed to other self defense rounds that do not expand at all.