Is 7.62x51 the same as 308?

Yes, 7.62x51mm NATO and .308 Winchester are essentially the same cartridge, but they have some differences. The 7.62x51 NATO is designed for military use and has stricter specifications regarding pressure and case dimensions. In contrast, the .308 Winchester is a commercial version that can be loaded to higher pressures, making it more versatile for hunting and sporting applications. While they can be used interchangeably in many firearms, it's essential to verify compatibility with the specific firearm being used.