HSM Ammunition Pro Pistol .41 Remington Magnum 210 Grain Jacketed Hollow Point Brass Cased Pistol Ammo 20 Rounds. The Pistol Pro ammo features premium jacketed Sierra bullets which is ideal for reliability and accuracy you can trust. Specifications for HSM Ammunition Pro Pistol .41 Remington Magnum 210 Grain Jacketed Hollow Point Brass Cased Pistol Ammunition: Manufacturer: HSM Ammunition Caliber: .41 Remington Magnum Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 210 grain Cartridge Case Material: Brass Primer Style: Centerfire HSM Ammunition 416N20: Pro Pistol .41 Remington Magnum 210 grain Jacketed Hollow Point Brass Cased Pistol Ammo