Quick Tip: 7.62x51 NATO vs .308 Winchester - What's the Diff?
This video from Brownells features Firearm Support Technician Caleb Savant explaining the differences between 7.62x51mm NATO and .308 Winchester cartridges. While both have the same external dimensions and 7.62x51mm NATO was developed from the .308 Winchester, they are not always interchangeable. The video highlights that 7.62x51mm NATO can generally be fired from a .308 Winchester rifle due to lower pressure, but firing .308 Winchester in a 7.62x51mm NATO chamber is cautioned against due to potential case rupture, as the NATO chamber is slightly longer and the .308 case may not expand properly. A crucial note is made about newer 7.62x51mm NATO chambers that may be designed to handle .308 Winchester, advising viewers to check their rifle's manual.










