05-10-2011, 01:53 AM
stanc Wrote:IMO, the above two requirements may be mutually exclusive. Use of a long, high-BC projectile necessarily implies a short cartridge case, a la 6.5 Grendel. However, such a short case does not seem compatible with either the M27 link or the M249 feed mechanism.As Joe pointed out, the requirements do not specify that the existing gun designs in which the round is to be usable have to be those sized for 5.56mm - in fact, I believe that would be an unhelpful restriction.
I am thinking more in terms of the FN SCAR H and MK48 LMG as being the kind of guns which this could be suited for.