From: Birdsboro, PA, USA
The German encyclopedia of German armor in WW2, where I got the info for this particular vehicle, shows an armor rating as follows-FH 30/12, SH 20/0, RH 20/10, T/B 10/90, the superstructure ratings are what was used for turret, since non-turreted, as follows-FT 30/10, ST 20/0, RT 20/10, T/B 10/90. This is what I originally entered, don't know why they are as portrayed now, but that happened often. Ammo was 25 rounds total, from what I've been able to find, the projectiles were similar to that of the 10cm K18, which did in fact fire the 10cm Pzgr. rot, ie HEAT. Achtung Panzer shows different armor ratings, but I went with the Encyclopedia numbers, anything can be dissected ad-nausium, but in the end a decision has to be made!!
As for the date, yes you are correct, but we didn't want hordes of these to be bought, hence the 1949/1949 dates, so it can only be bought in a scenario, not in PBEM, or campaigns, etc. Hope this helps clear up some things?!
Meine Ehre heißt Treue