Great conversation, we shoot 6.5 CM and PRC at a mile a few times a year with a fair level of success and one trip I had a good run with my 243 when conditions were good.
I could see it on the hip of some bloke in Africa with a fancy double rifle a hundred years ago.
Edited to add those pukka old poms didn’t carry their own guns, that was the job of a blackboy, and the blackboys weren’t trusted with ammo.