The M1 Carbine is the standard by which all PDWs are measured.

[SHORT-N-SASSY]

"For example, the 123 gr (8.0 g) 6.5 Grendel has more energy and better armor penetration at 1,000 meters than the larger and heavier 147 gr (9.5 g) M80 7.62 NATO round." < https://en.wikipedia.org/wiki/6.5mm_Grendel >