MFR# 16321UPC: 054041163217Introduced in 1948, the Nosler Partition Bullet is the standard by which all others are measured. The Partitions has been favored worldwide as it has a legendary level of accuracy, controlled expansion and weight retention in any caliber, on any game, and in any situation.It all begins with Noslers fully tapered copper alloy jacket. This jacket is designed to rupture instantly at the thin jacket mouth, yet the gradual thickening along the bullets axis controls expansion and curls the jacket uniformly outward at high or low velocities.The dual-core construction of the Partition coupled with the special lead-alloy core provides superior mushrooming characteristics at virtually all impact velocities.Noslers engineering efforts are shown, as every Partition bullet in the line delivers optimum length, weight and ogive design for maximum in flight and terminal performance.The integral Partition supports the expanded mushroom and retains the rear lead-alloy core which retains more than two thirds of its original weight, ideal for deep penetration. Finally the special crimp locks Nosler puts into each Partition adds strength to resist deformation under the pressure of heavy magnums.Each bullet is visually inspected at the factory and sealed in the box until you open them.