Federal Premium VITAL-SHOK Winchester 170 Grain Nosler Partition Centerfire Rifle Ammo 20 Rounds. This .30-30 Ammo has a world-renowned bullet featuring a partitioned lead core. The front half of the Nosler Partition fragments on impact producing rapid expansion and energy release. The back half remains intact ensuring deep penetration through weight retention. This American classic has been tried and tested for many years. This particular load has a unique Dual-Drum feature that lets the bullet make two separate elliptical shapes: a partitioned round self-flooding shape and a flat base spitzer type. The design of the Nosler Partition bullet gives it the best overall efficiency and terminal effect of any .30 caliber bullet ever made. In tests Nosler Partition bullets have been used to take out hogs as large as a mule deer at close to mid-ranges. This means that it is the perfect choice for all bears hogs antelope water buffalo and even coyote at close to mid-ranges. Specifications for Federal Premium VITAL-SHOK .30-30 Winchester 170 Grain Nosler Partition Centerfire Rifle Ammunition: Manufacturer: Federal Caliber: .30-30 Winchester Number of Rounds: 20 Bullet Type: Flat Base Spitzer Bullet Weight: 170 grain Cartridge Case Material: Brass Muzzle Velocity: 2200 ft/s Muzzle Energy: 1827 ft-lbs Application: Big Game Package Type: Box Primer Style: Centerfire G1 Ballistic Coefficient: 0.254 Lead Free: No Features of Federal Premium Vital-Shok .30-30 Winchester 170gr. Nosler Partition Rifle Ammo - 20 Rounds World-renowned bullet features a partitioned lead core Front half mushrooms producing rapid expansion and energy release Back half remains intact ensuring deep penetration through weight retention Perfect for all big game at close to mid-ranges Package Contents: Federal Premium VITAL-SHOK .30-30 Winchester 170 grain Nosler Partition Centerfire Rifle Ammunition What is Federal Premium VITAL-SHOK .30-30 Winchester 170 Grain Nosler Partition Centerfire Rifle Ammunition good for? The manufacturer thinks that it is suitable for big game.Federal Premium P3030D: VITAL-SHOK .30-30 Winchester 170 Grain Nosler Partition Centerfire Rifle Ammo 20 Rounds