This includes reloadable brass casings, non-corrosive Boxer primers, and jacketed hollow-point (JHP) bullets of uniform construction. The 90 grain JHP that Black Hills chose for this load has a sloped ogive and flat tip for smooth feeding and blunt entry respectively. 90 grains is a common .380 ACP weight and matches the most common practice loads. Precise jacket skiving border the bullet’s hollow cavity and promote dependable expansion upon impact with a threat. As the projectile penetrates into a target, it will increase in diameter, slow its speeds, and yaw in direction. This translates to a bullet that deposits all of its energy into vital organs in order to achieve a quick drop without the risk of lethal over-penetration.