Lapua Unprimed Cases Features The Lapua Unprimed Cases for .300 Win Mag are manufactured from brass to the tight tolerances Lapua is known for among competitive shooters and hunters alike. These cases accept the Large Rifle Primer giving handloaders flexibility in matching primer sensitivity to their chosen powder and bullet combination. Because they arrive unprimed reloaders have full control over every stage of the loading process from primer selection through powder charge and bullet seating. This level of control is what lets precision shooters extract the most consistent accuracy from the .300 Win Mag cartridge. Lapua brass is prized for its uniform case wall thickness and consistent neck tension both of which contribute directly to repeatable ignition and velocity from shot to shot. The cases ship in a purpose-built cardboard box designed to protect the brass from dings and deformation during shipping and storage. With bullet weights for .300 Win Mag ranging from 165 to over 245 grains these cases support a wide range of hunting and target loads. For reloaders who want the best foundation for long-range accuracy Lapua s unprimed .300 Win Mag brass is a proven choice. Lapua Unprimed Cases Specifications Manufacturer: Lapua Model: Unprimed Cases Caliber: .300 Win Material: Brass Primer Size: Large Rifle Firearm Type: Rifle Quantity: 100 Per Box Available At: GrabAGun