Prey tell old chap, just what would you say was a better foxing rifle? bearing in mind a .243 with a 55 grain bullet will out perform even the esteemed .22-250,.220 swift, .204 ruger, collection, and will cost (with home loads) about the same to run, I agree on the deer part (large deer) although a .243 will kill any deer species in this country, and is still a favourite with many highland stalkers, but as a fox rifle, it has no peers,
We all have our preferred tools and shooting situations vary a lot, I take loads of foxes in domestic type situations with my rimfres.....BUT.........