I noticed that moulds are running out of stock or in low stock as well. Some things lag others a bit during a panic. Primers went fast because people remember the last time and what they couldn't get for a long time after a panic (ammo manufacturers are sucking up all the primer production to make ammo, so none is getting to the reloading market).
Lee 9mm LUGER, .38 SUPER AUTO, .380 AUTO Bullet Mold. All Lee Mold Blocks are made from aluminum because of the exceptional molding qualities. The mold cavities are CNC machined for unmatched roundness and size control.