Thanks, TonyE, on confirming the .455 MQ for me.
MF/MG Factories #1 and #2 at Footscray, on Marybyrnong Road ( Docks area of Melbourne, Now a prime residential and commercial re-development area, including a Film Studio.
At the end of the war (1945) the MF plant was “closed” and the MG plant (newer Machinery) continued operations in 1946 and 47; then in 1948-50, the “MG” headstamp disappeared, and the Main ammunition supplier to the Defence Department became “MF” again.
So there are a couple of years immediately Post-war, when the MF headstamp does not appear ( along with all the other NON-Melbourne Ones, having closed in 1944 and 1945, early 46).
Machinery for MF dates back to Greenwood and Bately ( suppliers), in the “CAC” days of WW I (up to 1920s). During WW II, machinery was locally made ( Goerz(?Sp) (Melbourne) and Heine (Sydney), as well as imported Waterbury Farrel and Bliss; (USA).All the WW II new factories were equipped with Local and US Plant, British suppliers being occupied at home.
The fate of the Machinery of MJ, MH,MQ and MW is little known…some was sold to Indonesia in the 1950s(?), some was taken over by Riverbrand ammuniton (MJ and MH plants, South Australia) and some by Super Cartridge Co. in Melbourne; the MW ( western Australia) and MQ (Queensland) Plants are a mystery, esp. since MQ (as Noted before) Closed in 1944.
I have seen some of the MJ 9mm Para case trimmers (Waterbury) in use by Taipan Bullets, to trim bullet jackets; other varied Machinery ( lead wire cutters/formers, Core to Jacket presses, etc. have ended up in Taipan.
And of course, when the Footscray Plant of MF ( by then AFF/ADI) had closed in 1994, the Machinery was “scrapped” (ie, destroyed) under UN Regulations, before Benalla ( new ADI Plant) began operations in 1995.