Sierra Outdoor Master 40 S&W 180gr JHP Handgun Ammo - 20 Rounds - Sierra Outdoor Master cartridges utilize innovative components and production processes that deliver an economical cartridge suitable for all purposes. Packed with hard-hitting terminal performance and the same attention to detail that Sierra is famous for, Outdoor Master will get you outside with confidence. Power Jacket Is Topped With Sports Master Jacketed Hollow Point (JHP) Bullets. Specially Placed Skives In The Jacket Around The tip Of The Bullet Provide Positive, Uniform, And Controlled Expansion. Cartridges Are Loaded With Brass Casings, Making Reloading With Conventional Equipment Easy And Economical.