These deluxe 50 round capacity boxes were designed for ultimate ammo protection and ease of transporting. Bullets are placed in the box in the down position and are protected by four special fingers. These fingers are designed to keep most bullet tips from hitting the bottom of the box, preventing tip damage that can change bullet flight characteristics. There is also extra space provided between rounds to facilitate easy removal. The convenient fold down carrying handle is specifically designed so that belted magnum rounds can be carried rim up or down. The H-50-XL is for the extra large hunting rounds. The calibers listed are for bullet up position; however, some of the rimmed cases will fit better bullet down (thus use one or two sizes smaller). See bullet chart for your caliber. H-50-R-MAG for cartridge sizes: 219 Zipper, 22 Sav. HP, 257 / 270 / 300 / 340 / 7mm Wby. Mag., 264 / 300 / 338 / 458 Win. Mag., 25-284 / 284 / 356 / 375 / 32-40 Win., 30 T/C, 300 Dakota, 300 / 375 H&H Mag., 300 / 338 RCM, 303 Brit, 303 Sav., 30-30 Win., 30-40 Krag, 308 Marlin Exp., 308 / 358 Norma Mag., 32 Win. Spl., 375 Ruger, 376 Steyr, 38-72 / 38- 55 Win., 6.5 / 7mm / 8mm / 416 / 6.5 / 7mm / 8mm Rem. Mag., 400 / 400-350 Nitro Express, 400-360 Thin Rim Purdey, 416 Taylor, 40-65 Sharps Str., 444 Marlin, 6.5-06 A-Square, 6.17 Spitfire, 6.5x57 Rimmed, 6.53 Scramjet, 6.71 Phantom, 7mm Rigby, 7x61 Sharpe 7 Hart, 7.5 Schmidt Rubin Swiss, 7.5x55 Swiss, 9.3x74, 8 x 68S Mag., 9.5x57, 10.75x65 Rimmed, 10.75x68 Mauser.