Norma 308 Win 180gr Plastic Point 20 PackNorma 308 Win 180gr Plastic Point 20 Pack This is the sporting version of 7,62x51mm NATO. It was introduced by Winchester in 1952 only a year after the new NATO cartridge. As most other military cartridges it was expected to become popular for hunting quickly and Winchester wisely decided to make a civilian version with their name. The purpose of the new military design was to make a more compact cartridge with a quicker cycle rate than the . 30 06,