Specially designed for shooters who require a 100 round supply of very accurate ammunition (such as big bore, varmint hunters, etc.) The R-100 provides excellent protection for reloads and when the rounds are in the down position, they are protected by four special fingers which keep your bullets from hitting the bottom of the box and causing tip damage (which can change flight characteristics). It comes with adjustable inner trays which offer two height positions for different cartridge lengths.