SD-100 Self Propelled Artillery

The SD-100 were simply SU-100s in Czechoslovakian service. However there was a proposal to mount an experimental Autoloading gun.
Variants:
1.
Name: SD-100
Type: Self Propelled Artillery
Origin: Czechoslovakia (Soviet license)
Year: 1951
Produced: 460

Length: 5.92 Meters
Width: 3 Meters
Height: 2.25 Meters
Weight: 31600 Kilograms
Speed: 47 km/h

Crew: 4

Primary Armament:
-100 mm D-10S
-100 mm A20 (Autoloader: 5)
Secondary Armament:
-None

Gun Flexibility: °

Armor:
-Hull
75 mm Front (110 mm Gun Shield)
45 mm Side
45 mm Rear
20 mm Top
15 mm Bottom

Sources:
Rickard, J (16 September 2008), SU-100 Tank Destroyer , http://www.historyofwar.org/articles/weapons_SU-100_tank_destroyer.html

http://www.aviarmor.net/tww2/tanks/ussr/su-100.htm

http://ftr.wot-news.com/2013/09/24/premium-eu-tank-destroyers-part-iii/