I too like the 7x57R, and have used it a lot in combo and drilling. It has enough power for any of the deer species here in Oz, including sambar (near elk-sized), and recoil is modest even in a 6lb drilling.
For most of what I use the drilling for I could even be happy with a 5.6x50R, with a fast enough twist for heavier bullets, though even the 63 gn Sierra does a good job on fallow deer. That would suit me nicely for rabbits, foxes, goats, pigs and fallow deer, but that would be its limit. That is most of my hunting though. 5.6 x52R would be in contention too if it would shoot well with .224" bullets
