OK now that we have hijacked the crap out of this thread I want to post something about the actual thread title
Followed Firrals link. One of the things that I like like least about this system is that both guns share the hydraulic recoil system.
Of all the systems that they chose to share, and its the only one, this is the worse choice you could make.
Howitzers normally go out of action because of recoil problems. And thats the system they share.
I see that both barrels have recuperators. So why share the system Unless the top ones are the recoil cylinders and the bottom ones the counter recoil cylinders. But I don't think so because of what looks like a cylinder between the barrels.
Give each barrel its own isolated recoil system. You can get rid of the muzzle brake. Or at least make it smaller. And squeeze out a fey extra meters of range. Plus having a more reliable system. And possibly a higher rate of fire.
Not that RoF isn't overblown when judging howitzer capabilities. Except for a MRSI mission with an autoloader, Rof doesn't apply to artillery like it does for small arms.
If anyone believes that the actual Rate of Fire for the M-198 howitzer is 4RPM for 2 min then 1 RPM sustained, or that the M101 could only fire 10RPM you are highly mistaken. And it doesn't take a highly trained crew to shoot higher RoF.