The MTM Case-Gard H50XL10 Deluxe Ammo Box provides secure storage for 300 WSM and 300 RUM cartridges with a 50-round capacity in durable green polypropylene construction.MTM Case-Gard H50XL10 Deluxe Ammo BoxCompatible with 300 WSM (Winchester Short Magnum) and 300 RUM (Remington Ultra Magnum)50-round storage capacity with organized compartmentsDurable green polypropylene material for long-lasting useDeluxe model with convenient carrying handleSecure storage solution for ammunition organizationIdeal for hunters sport shooters and ammunition collectors who need reliable storage and organization for their 300 WSM and 300 RUM cartridges with the quality and durability MTM Case-Gard is known for.