.308 origins? Read another thread here that gave a tale I had not heard before: true?

[jonnyc]

Parashooter has it right. And while we're at it, there is no external design difference between nominal .308 and 7.62x51 rounds. Any variation is the same as you might find between factory rounds made by different manufacturers. Some military 7.62 has been produced with a thicker internal web to better withstand automatic weapon extraction, but that is really only of interest to reloaders. Military 7.62 chambers can be a bit more generous than tight commercial chambers, but that has nothing to do with the .308/7.62 cartridge...........same beast with two different names. Your mother is your father's wife...........usually.

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[RCS]

Some post WW2 US Ordnance 7,62mm cartridges, the early 300 Savage has a FA 46 headstamp, different profiles are found in this small sample, some are 7,62x49.5mm and then the 7,62x51mm.

The single cartridge is the 7x49mm Liviano which Venezuela ordered chambered in their first order of 5000 FAL rifles in 1954. Would still be an excellent cartridge todayAttachment 52398Attachment 52399