Grendel as a Universal Infantry Cartridge

[woohoo]

I would assume that when comparing the 6.5mm GPC to the 7.62x51 that a 20" barrel would be the norm. These are battle rifle standards. The 16" is assault rifle/carbine thus one would compare the 5.56x45 to 6.5mm GPC.

As noted in the other thread the real comparison should be to the enemy's 7.62x54 with a 24" barrel. The US military needs to be able to engage the enemy at whatever range they can engage us. Some still use a 20" DMR and LMG but many are getting shorter now.
In the past 8 years several have submitted intermediate power cartridges like the 6.8 and Grendel, neither were chosen. That should be a real sign. I think whatever cartridge will need to impress the crap out of those making the decision. Beat the 308/7.62x54 with a lighter weapon and ammo combo that has less recoil and more controllability than the 308 rifles and LMGs currently in use

Support troops should use a PDW or hand-me-down M4s. Give the combat troops a real GPC that can do it all.

ETA the 7.62x54 sniper load runs 2650-2700fps with a .498 BC bullet. The standard ball has a BC of around .435, many manufacturers exist.