From: east coast, usa
Ok. I went thru similar hassles figuring out the Breakthrough Artillery Divisions. I think we can figure this out, but the descriptions you gave differ slightly from what I am looking at.
Clossus Reborn, pg. 324, Table 8.1.
Descriptions starting on pg. 288.
Stumbling Colossus, pg. 180, Table 6.1.
Abbreviations, pg. xv in the front of the book.
Looking at that stuff I get these:
SPABn (RGK) Special power [OM] artillery battalion
West Front 32nd
SouthWest Front 34th, 245th, 315th, 316th
9th Sep. Army 317th
Moscow Front 40th, 226th, 228th, 23rd
Of course, no idea whether they had 203mm or 305mm howitzers, but 24 each. Um, no 305mm in TOAW ?
I'll stop at that if its no help, or continue on if you like.