For a dedicated fox rifle meeting your stated circumstances, the no fuss, no muss option is the .223. Factory ammo and new and used rifles of many flavours on every street corner.
Less factory ammo and fewer rifle options, but an easy shooting option is the .204.
But, for a smile every time you pull the trigger on charlie, the .17 Rem is very hard to beat. Yes, may be problematic on the ammo - you will probably have to consider reloading - but rifles are often available used on some really nice actions, and not difficult to get one built up.
There is no benefit in a fast twist 22-250 or .243 for night shooting of foxes
Less factory ammo and fewer rifle options, but an easy shooting option is the .204.
But, for a smile every time you pull the trigger on charlie, the .17 Rem is very hard to beat. Yes, may be problematic on the ammo - you will probably have to consider reloading - but rifles are often available used on some really nice actions, and not difficult to get one built up.
There is no benefit in a fast twist 22-250 or .243 for night shooting of foxes

