>>537500
>So will these troops be using magazine or belt fed weapons?
Do you mean what I've described, or the LSAT program? On the former: you can combine the two, that's why I specifically mentioned the URZ. The magazine has the belt-feed mechanism built in. A very similar device was developed for the RPK-74 by the soviets, expect that it was powered by the cocking handle, as the bolt wasn't designed for the job. Here is the patent of the URZ's magazine: https://www.google.com/patents/US3507186
As for the later, the program's original aim was to develop a machine gun, and the carbine was an afterthought.
>the magazine fed rifle is rather heavy for a carbine of its length
Honestly, it seems to be overdesigned and in a very bad way. Read about the Steyr ACR if you want to see how it should be done.s
>with only 20rds capacity
They could increase it to 25 if only they used a constant-force spring.
>a bit suspicious that having a separate chamber and barrel will lead to additional potential weapon stoppages than with a conventional system
I thought that too, but again, it can be done right. I mean, does this seem to be complicated for you? https://www.youtube.com/watch?v=2Owogu_un7s For a CT version of this action you just need the new round to push out the empty case, and then that can be ejected downward. It's actually simpler and easier to manufacture than a rotating bolt system.
>What concerns me about this is that the ammunition developers do not actually know what this blend consists of, and have experienced data loss when working with contractors before.
LSAT isn't the first cased telescopic program, there is the aforementioned Steyr ACR, and there is also a 40mm CT autocannon in development. So it's not like they have some form of monopoly over this technology.
>the whole program seems to be angling toward every rifleman being a machinegunner, but you seem to be angling toward every rifleman being a grenadier
More like 2-3 out of 4 soldier should be grenadiers, and the 4th one should be a machine gunner, but they all should use the same weapon. After all, both automatic fire and grenade launching requires weapons that can take some punishment, so I think you can develop one that is equally capable at both roles.
>you may infact rupture the casing and cause either a castrophic failure or atleast a significant jam
In this system the bolt is fixed in place, therefore it can be a rather hefty piece of steel, much stronger than what most "orthodox" weapons have. Similarly, you can reinforce the floating chamber quite a lot if you don't mind the weight. And even if the case ruptures, you just push out the whole mess when you chamber a new round.