For .22, three of the 500 round bricks I buy (10 boxes of 50 rounds each) exactly fit in a .30 cal ammo can (1,500 rounds).
For WWB 9mm, I can fit 20 of the 50 round boxes (1,000 rounds) , or 14 of the 100 round value packs (1,400 rounds)in a .50 cal can.