To be honest, it didn't make any difference what rifles or SMG's went where. The UKended up with loads of Australian
or NZ rifles and no doubt they ended up with UK made ones too. It wasn't uncommon to find them all over the place. Just a feature of mixed Ordnance stores. To the blanket stackers at Ordnance, a rifle was a rifle and an SMG was an SMG. But in Malaya, once the first AR15's came on stream - followed by the decent M-16's, the UK NZ and Australia returned their Sterlings, Owens and F1's to Ordnance. Never saw them after that
Ammo was all mixed too from NZ CAC made, UK made and Australia and 556 from the US