UPC: 029465056032 ID: 4239640 Category: Ammo > Rimfire Manufacturer: Federal Caliber: 22 WMR Caliber: 22 Magnum Weight: 0.440 Model: 737 Rounds per box: 50 Rounds Per Box, 60 Boxes Per Case Bullet Type: Full Metal Jacket Bullet Weight: 40 GR Muzzle Energy: 315 ft lbs Muzzle Velocity: 1880 fps SubBrand: Champion Target Caliber/Gauge: 22 WMR