Frankford Arsenal Perfect Fit Reloading Tray for Convenient 50 Round Brass Storage SPECS: 50-round capacity DIMENSIONS: Hole Diameter  0.375 Hole Depth - 0.595 EASE OF USE: Fits 17 Rem, 22 Hornet, 221 Rem, 222 Rem, 223 Rem, 30 M1 Carbine DURABLE: Constructed of heavy duty plastic CONVENIENT: Stackable and slim for space saving storage and lightweight for easy transport