Today I acquired a Hirwaun made 9x19 round off someone at my shooting club. I had been told about him having the round but it being live, so I took my puller with me. When I pulled it I found that it contained no powder. However two separate bands of oxidation on the bullet make the round look to have been pulled and reassembled without powder at some time, as the bullet was seated slightly too far out of the case. However there are no vice or plier marks, and there were no traces of aluminium from a puller collet left on the rim before I pulled it and discovered it had no powder.
The case and bullet appear to have been blackened, they look too dark to
have acquired a patina with age, but the dark colouring is now pretty well worn if it was intentionally blackened. The portion of the bullet inside the case mouth was plain GM. The primer is unstruck, and the round has the typical British purple primer annulus of a ball round.
The headstamp is also new to me, as the Ms in the calibre designation have dots after them (9 M.M.), I have only ever seen the Ms separated by a slash (9 M/M) or nothing at all (9 MM) on 1943 Hirwan 9mm rounds. The full headstamp of this round is: “H/|\N 43 9 M.M.”, bunter slightly off centre as typical with these rounds. Was this chemically blackened for a reason, or has it simply become blackened due to being damp etc.for a long period of time at some stage. See photo below: