These are the original CASE-GARD ammo boxes. Made of virtually indestructible polypropylene that will not warp, crack, chip, peel, expand or contract, MTM CASE-GARD rifle ammunition cases are still the first choice of rifle enthusiasts throughout the world. MTM's famous living hinge boxes are guaranteed for 1 million open-close cycles or ten years. Snap-Lock latch protects contents from accidental spilling. In the late 1960's, the RS-S-50 was designed specifically for benchrest shooters. The CASE-GARD 50, which is available in eight sizes will hold .22 Hornet to 375 Remington Ultra Mag., with each cartridge resting in its own individual compartment. Each CASE-GARD 50 ammo box is supplied with a load label for recording load and sight data. All rounds listed as bullet up, unless noted. See ammo box charts for more calibers. RMLD-50 for cartridge sizes: 25 / 270 / 300 / 325 / 338 / 7mm WSM, 30 Rem, 300 / 7mm Rem. SAUM, 300 / 338 RCM, 348 / 356 / 375 / 38-56 / 40-65 Win., 375 Rimless 2 , 376 Steyr, 38-55 Win., 38-55 Ballard, 45-70 Govt., 40-82 / 45-90 / 348 WCF, 40-60 / 450 Marlin, 30-40 Krag, 400-375 Belted Nitro Exp., 6.71 Phantom, 7.5 Schmidt Rubin Swiss, 7.82 Patriot, 7mm Rem. SAUM / 8x56 Rimmed Hungarian, 8.59 Galaxy, 9.3x62, 9.5x47 Rimmed, 10.75x65 Rimmed, 28 Ga. Shotshell. Max. OAL= 3.08"