New Cartridge Developments and Implications for Dismounted Infantry Soldiers

[stanc]

If the LMG only weighs 9.4lbs, a carbine with a belt-fed mechanism could weigh what an M4 does. With the right configuration of the weapon, you could have an Adaptable Weapon System with 50-100rds on the gun as the norm. Magazines don't really appeal to me with the capabilities LSAT brings to the table...

Why ruin a good thing? The logical approach for now would be to pursue a 6.5mm LMG, and take it toe-to-toe with M240L and PKM's to show what we already know.

Drop the SAW and M240 like bad habits in the same move as they build the production lines up for the 6.5mm projectiles. Leave M4's with the M4A2 program upgrades, and let units start to see that this system could make the assault rifle obsolete. I can tell you right now that the first time more senior NCO's and soldiers with combat experience get their hands on a 9.4lb LMG with ammo that weighs 40% less than current 5.56, lightbulbs are going to start going off.

I can hear even the PSG right now. "Hell, with a shorter barrel, I could carry one of these and not think twice about it!"

Squad Leaders and Team Leaders will be thinking the same thing.

First, let me say I do like the idea of a belt-fed weapon for every infantryman. But, I question if the leadership would go for it, since those at higher levels historically have been conservative and somewhat resistant to change.

Also, I doubt that a 6.5mm LSAT LMG will be nearly as light as the 5.56mm version. Depending upon what performance is required, a 6.5mm LMG may be nearly as heavy as the 7.62mm version, which has an estimated weight of 18 lbs. Even if you can cut a couple pounds off the weight of a carbine, how many of those platoon sergeants, squad leaders and team leaders are going to want to lug around a 14-16 lb weapon? :eek:

One other thing: I don't know how close to your 0.550 BC can be achieved in a practical, lead-free bullet, but it seems certain that for maximum BC the 6.5mm projectile will be significantly longer than the current M80 ball round. Which means the 6.5mm CT cartridge will likely be about the same (2.25") length and weight as 5.56 NATO.

Biggest question for me right now is what will happen with Grenadiers.

Follow the USMC lead and give them 6-shot, M32 grenade launchers?