found the info in a new webpage.
http://oldmilitarymarkings.com/japanese_markings.html
according to it there were only 4100 of these rifles made between nagoya and kokura factories so that makes them one of the most rare battle rifles of the time right behind the springfield 1903A4.
further EDIT:
a little bit better news. it appears that the CCs follow the same serial scheme, though in smaller numbers but if they have the same parts serial scheme as my T44 and T99 then only the last 3 digits of the serials appear on the bolts which would mean you have a much healthier pool to draw from if you wanted to force match numbers.