Underwood Ammo .45-70 Gov +P 300 Grain Jacketed Hollow Nickel Plated Brass Rifle Ammunition Point 20 Rounds. The InterLock Ring - a Hornady exclusive - ensures that the core and jacket remain locked during expansion. The InterLock retains more mass energy and momentum after impact and transfers that energy to the target. Its reliable stopping power has earned the InterLock a worldwide reputation as a bullet for serious hunters. Nickel-plated brass casings our nickel plating process provides several key benefits not limited to but including; improved feeding in all actions of firearms enhanced corrosion resistance over traditional brass improved cosmetics and ease of cleanup during reloading. Nickel-plated casings will not tarnish like brass during storage or when in contact with foreign materials such as leather moisture and other metals. As with all of Underwood Ammo rounds we utilize flash suppressed powder so that your vision will not be compromised if it becomes necessary to use your firearm in low light. While taking advantage of our state of the art testing equipment this high-performance ammunition is field tested using popular real firearms that our customers are most likely to own out in the real world with all the elements you would experience. This ammunition is new production non-corrosive in boxer primed reloadable brass cases. Specifications for Underwood Ammo .45-70 Gov +P 300 Grain Jacketed Hollow Point Nickel Plated Brass Rifle Ammunition: Manufacturer: Underwood Ammo Caliber: .45-70 Government +P Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 300 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 2350 ft/s Muzzle Energy: 3678 ft-lbs G1 Ballistic Coefficient: 0.197 Lead Free: No Application: Large Game Medium Game Package Contents: Underwood Ammo .45-70 Gov +P 300 Grain Jacketed Hollow Point Nickel Plated Brass Rifle Ammunition Underwood Ammo 916: .45-70 Gov +P 300 Grain Jacketed Hollow Nickel Plated Brass Rifle Ammunition Point 20 Rounds