DM63A1 is just old DM53 round that have been converted with the new propellent. AFAIK the incendiary tracer change didnt actually get a new designation.
DM73 is the same penetrator at a higher MV as the new propellent left much overhead on the pressure. I suspect the CR3 will use this in some capacity
DM83 (EKE) is in final development trials, the UK is co-funding it now. New penetrator design. Depending on the timing i suspect this will be the main round of the CR3.
Yes, CR3 won’t be in service for a few more years and DM73 was supposed to be in service already, so by the time CR3 is in service it seems a fair bet that it will use the newest round.
thats the thing thats literaly the name of the KE2020 NEO already, and its in development since way longer then EKE, its planned to be finished this year, we might even see it in 2 weeks
Sounds like the shell has already been developed and is now just being approved and qualified on the Challenger 3. This lines up with the timeline of KE2020 Neo.