[Jeff Higgins]

Has anyone ever heard of such a thing? I've been watching a "discussion" (more like a pissing contest) between two of your typically anonymous internet "experts" on everything. One of them claims there is some weird "blue .308" that achieves this astonishing 5,000 fps. He says it's a "practice round". Now I feel I keep in touch with developments in the firearms industry, and I have never heard of such a thing. A cursory each didn't turn up anything. I'm thinking this is more than likely some first person shooter game wherein this magic .308 is available, but since I know less than nothing about those, I'm not entirely sure. Any ideas?