Winchester Razorback 308 Winchester Ammo 150 Grain BPPHP ammo review offers the following information; Winchester's Razorback XT ammo is made to ensure deep penetration, even through extremely tough hide and caked on mud. This 308 Win ammo has a 150 grain beveled profile protected hollow point bullet, and an advertised muzzle velocity of about 2,800 feet per second. The BPPHP bullet is engineered to expand after penetrating the mud and hide on wild boar, unleashing its massive kinetic energy on the hog's vitals, dropping it where it stands. This bullet is also lead-free, making it legal for hunting use in all 50 states. It also uses gun powder with reduced flash for low light hunting, and these rounds have a nickel-plated brass case for easy functioning in all weather conditions.

Winchester introduced the first successful centerfire cartridges.