These Jacketed Hollow Cavity SportsMaster bullets are designed for high velocity and rapid expansion, and are suitable for all 38/357 cartridges used in handguns or rifles. Power Jacket skiving assures even upset, and Sierra’s unique cavity ensures quick expansion. Tough enough to give good penetration, these bullets are a fitting choice for varmints through medium-sized game in 38 Special and 357 Magnum guns by matching bullet weight to the quarry. The cannelure is located for proper crimping for most 38/357 revolvers and rifles. The 158 grain #8360 bullets are very effective on Handgun Silhouettes as well.