After World War II, the U.S. government issued contracts to Winchester and Remington for the development of a replacement cartridge for the .30-06. The result of those efforts was a shorter version of the .30-06 called T-65. Later the name was changed to 7.62mm NATO.
New Production Ammo can be found manufactured by practically everyone.
Surplus Ammo - Found everywhere and for very reasonable prices.
Reloading Dies are made by Dillon Precision , RCBS, Redding, and Lee Precision , to name a few.
Reloading Components can be found at Huntington's, Midway USA , and the Wholesale Hunter , to name a few.