For some guys this makes the MTM R-50-series ammo boxes easier to use both on the bench and at the range. Dave notes: “The new and improved MTM RS-S-50… has a real mechanical hinge that just flops the lid back out of the way. The dimensions are virtually identical to the 512. [The RS-S-50 box is] tall enough that long-seated 6mm 108gr bullets will just fit and the walls between the compartments are high enough the empties can’t jump out.” The new MTM R-50 series are made from tough UV-resistant polypropylene that won’t crack. The mechanical hinge is warranteed for 25 years. The MTM CaseGuard R-50 series is offered in eight (8) sizes to fit everything from 17 Hornet all the way up to .375 Rem Ultra-Mag. For .204 Ruger, .223 Rem, and .223 Rem shooters, get the RS-50 box. For 22-250, 22BR, 6PPC, 6mmBR, 30BR, and 7.62×39, you should order the RS-S-50 box, shown below. For other rifle cartridge types, CLICK HERE for Chart showing the right-size MTM box.

Consumer NOTE: Some online vendors still may still have older-inventory MTM R-50 series Ammo Boxes with the older-style lid attachment. The newer, hinged version shares the same product names, for example RS-50 and RS-S-50, so you’ll need to ask for the newer versions when ordering. (NOTE: The two-tone boxes all have the new hinges.) When shopping online, you may see extended product codes, such as “RS50-24″, and “RS50-16T”. The suffixes are box color codes, “-24″ referring to blue, and “-16T” referring to green/black, with “T” for two-tone. The RS-50 series comes in four (4) color options, each with its own suffix.