LRRPF52 Wrote:I've been reading through The Black Rifle Volume I again, and I find the cartridge development fascinating, especially how one of the engineers concluded that the .223 Remington was pushing pressures way too high to achieve the advertised 3300fps MV. He also suggested that they look at the .25 Remington case for the AR15, but it would likely have killed the AR15 in its infancy, which was the goal of most of the engineers and managers in Army Ordnance Department.
They really hated MacNamara's "Whiz Kids" ordering them around in an unprecedented take-over of US Military Small Arms development, testing, evaluation, and fielding. If you haven't read the detailed history of the AR15, I can't recommend it enough. It's absolutely a page-turner.
LRRPF52,
Have you seen this web site? http://www.thegunzone.com/556dw.html The blue panel on the right side of the screen provides links to read the complete history of the 5.56x45mm round. It is also a very interesting read.
pds