Surplus 7.62x54R ammunition is available through numerous online retailers in a variety of weights, cores, and casings. It is sold as military surplus from sites that include aimsurpluss.com, bulkammo.com, and classic firearms.com.
The Russian 7.62x54R ammunition was made by the Novosibirsk Ammunition Factory to be fired from the Mosin Nagant M91/30 rifle. It is a steel core bullet with a lead tip, a full metal, copper-washed steel jacket casing, and is sold in 440-round cans. It is available in 147-grain weight as Bulgarian surplus and in 149-grain weight as Romanian surplus by aimsurpluss.com, and in 148-grain weight as Russian surplus from bulkammo.com. This ammunition is also available in heavier grain weights and in different quantities through other suppliers.