When I said high pressure ammo was the last hoo-rah of gun powder, some people said it was a "fad"... that it wouldn't take off. I believe it is still the future of gun powder based cartridges, and hopefully we'll see companies adopting the tech.
Federal announced that they signed an agreement with the US Army to accelerated high performance ammo by allowing the Army to use its PEAK ALLOY case technology. Below is a video of Bill Geissele shooting 5.56 with PEAK Alloy cases.