I have several of these loaded with ammo and canned food and they hold up well. Rated for 350 lb. per shelf. Lots of other good Black Friday deals going on right now.
https://www.preppingdeals.net/deals/amazon-amazon-basics-5-shelf-heavy-duty-storage-shelving-unit
https://www.preppingdeals.net/deals/amazon-amazon-basics-5-shelf-heavy-duty-storage-shelving-unit