Weatherby Select Plus .338 RPM 225 Grain Hornady Interlock Brass Cased Centerfire Rifle Ammo, 20 Rounds, H338225IL

5 RPM necked up to accept a 338 caliber bullet. The 338 RPM was designed to take advantage of Weatherby 6-Lug action to get magnum performance in a 5lb rifle. The large body diameter low body taper and 35-degree shoulder mean that case capacity is greatly increased leading to higher velocities.