I do know 303 based wilcats were popular in Australia, think they had lots of surplus 303 military rifles back in the day.
Yes, and so did we. I recall walking into the army and navy surplus store in wpg as a kid and there were a couple garbage pails full of old 303's. $15 each. For a lot of us, those were our first "big game" rifles. No flies on the 303. South Africa had a lot them too. - dan