These bullets were designed and introduced for Handgun Metallic Silhouette. This competition, which requires toppling heavy steel targets. A heavy bullet is necessary to provide the momentum required to knock these targets over. The 180 grain #8370 Full Profile Jacket bullet (FPJ) was introduced in 1984 specifically for the 357 Maximum cartridge and the Handgun Silhouette game. This high-pressure cartridge dictated a heavy bullet for maximum performance as well as superb accuracy. It is an extremely accurate bullet in the 357 Maximum as well as the 38 Special or 357 Magnum. The cannelure is located to give the proper overall length and crimp for all revolvers chambering these cartridges. These bullets are non-expanding types, but this 180 grain #8370 FPJ bullet has been used very successfully in the field for game such as bear and wild boar where deep penetration is required. These bullets are suitable for all cartridges from 38 Special to 35 Remington in revolvers, single shot pistols and rifles.