WASHINGTON – The Defense Department awarded an $80 million contract to a subsidiary of Wisconsin-based Presto Industries to manufacture high-velocity and low-velocity tactical cartridges. These are cartridges fired from 40mm grenade launchers and which can penetrate two inches of steel armor and kill targeted soldiers. Although known mostly for kitchen pressure cookers, Eau Claire-based Presto has been in and out of the arms business, most recently through its Amtek subsidiary.