04-28-2011, 01:48 PM
Tony Williams Wrote:No argument with that Stan, but it really doesn't have to - at closer ranges it merely has to show a substantial improvement over the close-range calibre (the 5.56mm) in barrier penetration and terminal effectiveness, which should be no problem!
One thing that hasn't been discussed here in detail is barrel length. Is it possible to have one cartridge that will perform well in a 16 inch bbl for riflemen, in a 22-24 in. bbl on a squad machine gun like the M249, and of 28 in. (or more) in a heavy bbl version of the SAW for a platoon machine gun?
Designated marksmen could carry a rifle with 20-24 inch bbl with a PRS type butt and good optics.
What is the point of diminising return on bbl length in the 6.5 Grendel?
In a pinch, riflemen could break down linked belts to load mags or machine gunners could use magazines in the mag wells of the SAW.