TulAmmo 7.62x39mm ammunition is a reliable choice for both sport shooting and hunting with bolt-action and semi-automatic rifles and carbines. TulAmmo converted from a bi-metal jacketed round to a zinc-coated round, which provides up to 10-15% better shooting accuracy. Zinc coating is a chemical method of surface treatment (galvanizing) which gives the bullet jacket a more uniform and consistent protective layer than that of machine-stamped bi-metal bullet jackets.