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-XL for cartridge sizes: 25 / 270 / 300 / 325 / 338 / 7mm WSM, 300 Pegasus, 300 / 7MM Rem. SAUM, 300 / 338 / 375 / 7mm Rem. Ultra Mag., 30 Super Flanged, 330 / 375 / 416 Dakota, 333 Jeffery, 338 Excalibur, 338 Lapua Mag., 338-378 / 375 Wby. Mag., 348 Win., 358 Shooting Times Alaskan, 404 Jefffery, 404 Nitro, 40-70 Sharps(Straight) 416 Rigby, 45-110 Sharps, 458 Lott, 470 Capstick, 500 A-Square, 6.5x58 Rimmed, 7.21 Firebird, 7.62 Lazzeroni Warbird, 7.82 Warbird, 8x56 Rimmed Hungarian, 8x65 Rimmed, 8x64 Brenneke, 8.59 Galaxy, 8.59 Titan, 9.3x62, 9.3x82 Rimmed, 10.57 Meteor.