Hummm...all this artillery discussion you know I have to jump in!!
For Karl...here is the interwar list
OK we discussed the M55 from Renwal later Revell and last molded by Revell in their history makers series.
The M52 seen at the start of the thread is available from Hobby Fan as a resin kit
The M41 155mm howitzer was available from CMK, also a resin kit
The M40 155mm gun was the end of WWII and is an AFV kit.
The M43 8 inch is a derivitive of the M40 and can be kitbashed
The century series of guns all OOP from Italeri but all available on ebay
M108 105mm howitzer
M109 155mm howitzer, M109A2/A4 155mm howitzer and M109A6 155mm howitzer
M107 175mm gun
M110 8 in howitzer, M110A1 8 inch howitzer, M110A2 8 inch howitzer
The ones that are missing
M53 155mm gun - 155 mm version of the M55
M37 105mm howitzer - updated M7 Priest on M24 chassis
M44 155mm gun - Same hull and chassis as the M52....kitbash
Thats the list of the US post WWII self propelled howitzers/guns
Rounds Complete!!