Quote:Army researchers are testing half a dozen ammunition variants in “intermediate calibers,” which falls between the current 7.62 mm and 5.56 mm rounds, to create a new light machine gun and inform the next-generation individual assault rifle/round combo.
The weapon designs being tested will be “unconventional,” officials said, and likely not one that is currently commercially available..
Sounds like the Lightweight Small Arms Technology (LSAT) LMG and Carbine, maybe?