Three kinds of shooters buy this shelf: owners of surplus rifles, varmint and deer hunters, and people with an unusual rifle. Each needs a different plan. Surplus rifles For an SKS or an AK, steel-case 7.62x39, at steel case 7.62x39 ammo, is the usual practice round. Check range rules and clean after shooting if the primers are corrosive. For a Mosin-Nagant, anyone who wants to buy 7.62x54r...