Holds up to 50:

.17 Remington up to Remington Ultra Mags. and WSM, WSSM & Remington SAUM , etc

9mm  .38 10mm, 44 Mag., 45 ACP, 500 S & W Mag. etc

Tray lies perfectly flat with cases spaced wide enough for fingers and powder funnels

Will not hold 45-70, 45-90 or larger wide rim calibres