These bullets are designed to meet even the most demanding shooter’s needs. This bullet was introduced in 1988. They provide rapid, controlled expansion for defensive use or on game up to large varmints at ranges out to 100 yards. Their unique design also produces excellent accuracy for competitive events. These power factors are easily attained with the heavier bullets in the 10 mm Auto or 40 S&W. One also can use any of these bullets in an old timer, the 38-40 Winchester (38 WCF), made popular in both single-action revolvers and rifles for Cowboy Shooting.