MTM LT-50-43 Compact Universal Loading Tray (Light Gray)Category: Grn LoadThe Compact Universal Loading Tray (LT-50) accommodates most traditional casessold in the United States. Each side is for different caliber. Really compactfor tight loading benches. Rifle Calibers = 222, 223, 22-250, 270, 308, 30-06,375 H, 264, 30-30 traditional sized cases. Handgun Calibers: 32, 38, 380,41, 44, 45. It will NOT hold the newer rounds like the WSM, WSSM, Rem UltraMags and the 500 S Mag.