.308 for the sheer choice of rifles and availability and variety of Ammo. That should scratch the itch....
Get yourself a .25 cal, talk to anyone who shoots one and they will tell you they are a hammer, will drop anything we have here on the British isles, mates have 25-06 and 25-06 AI, i have a 257 Roberts Imp and another two mates have 257 Weatherbys, can be loaded with 75 grn V-max for varmints and 120 SPs for big game.
Ian.
What quarry do you shoot with your 257? Any pictures?
Tim.243