Yup... that will do the job... and it has the same profile as the HEAT round..DM11 is however a programmable round, so you can airburst it in fancy places. Thus it's more of a controllable smaller bang, which allows more selective targeting of soft targets. Want to blow up a room, not a house? We can do that.
From RHM's website:
Also, looking at the plans on the internet, it has if not a fragmentation sleeve, then a return of the old style Shrapnel round:
So if you've got a large group of badguys out in the open which you'd usually punt a HESH at, fire one of these, set the detoantion distance -10 meters (or what ever gets the best effect) and shotgun them in the face.
Trust Rheinmetall - my current favourite weapon designers..
On the matter of canister/case shot.. these have been played with on numerous occasions... the problem is that they do considerable damage to the barrel, and are the equivalent of several AP shot in terms of barrel wear. The equipment managers hate them and try to stop them being used..