Federal 40 S&W HST JHP 180Gr Personal Defense ammunition has been specially designed to deliver consistent, tremendous expansion, optimum penetration and superior terminal performance. The specially designed hollow point will not plug while passing through a variety of barriers and the jacket and core hold together providing nearly 100% weight retention. These Federal HST 40 S&W rounds are loaded into a Federal Premium nickel plated brass case with waterproofing on the case mouth and primer. Every load has consistent powder charge and reliable primer for consistent ignition. This HST bullet features a tapered jacket profile for reliable feeding, a cannelure that locks the copper jacket to the lead core, patented co-aligned internal and external skiving and a deep tapered hollow point that will not clog.