Jochem, noone cared for the calibers as the question was about case materials and propellant manufacturers.
I guess this happens when factories do split up.
Here the entry on Viromet S.A., Victoria:
Founded in 1939 as a German business named “Fabricile Ucea”, in 1944 captured and dismantled by Soviet troops, in 1949 relaunched as Soviet-Romanian business “Uzinele Sovromchim Ucea”, in 1951 renamed to “Combinatul Chimic Victoria”, in 1953 renamed to “Combinatul Chimic I.V. Stalin Victoria” and plant became operational, in 1990 renamed to “Viromet S.A.”, in 1991 the military Branch was disembodied from “Viromet S.A.” and named “Uzinele Chimice Victoria” which then together with “Nitramonia” of Fagaras formed “Rompiro Fagaras RA.”, in 1997 renamed to “Rompiro R.A. Victoria”, in 2000 subsidized by “S.C. Arsenal S.A.” (Arsenalul Armatei RA.) holding, in 2001 renamed to “S.C. Pirochim Victoria S.A.” and became part of “C.N.Romarm S.A.” holding, later renamed to “Viromet S.A.”, since 2002 inactive.
The 2 companies just have common roots and cross overs. I should have listed both of course.
Given histories are from Romanian sources.
As per this "Combinatul Chimic I.V. Stalin Victoria” (CCIVS) is factory “U” and made propellants: