I don't know much either. But I know it started out as a US military project. And that it can drive a 250 gr bullet at 3000 fps. Basically an anti-personal round, but with a 250 gr AP, will penetrate light armor (steel) alittle over 1/2" thick at a 1000 meters. According to some, it's more accurate, and better suited than the 50 BMG out to 1500 meters. I read somewhere what it's case capacity is, but forgot. I think it's fairly close to the 416 Rigby. I see if I can find more, I got a full write up somewhere.