im new to this site so please just point me in the right direction if this has been specifically discussed. Im going to add a third Cooper to my collection sometime between now and fall aimed for whitetails. Its going to be the Phoenix style rifle since i already have two MTV and love them but would like a synthetic stock. I need some opinions on which caliber though. ive been looking at a much as i can to pick and am leaning towards a 25-06, but ive never shot one. I want something that 1)has low recoil and 2)flat shooting but will effectivly kill a whitetail at out to 400yrds with a well placed vitals shot. I want it to be a sure thing even on those 250lb+ bruisers not just any 150lb doe. My three options are 243, 25-06 and 270, i would probly place 270WSM in place of the 270 but i dont think Cooper is available in that caliber so please dont comment on it unless you know otherwise. So i would like to hear as many opinions as possible and factory ammo combinations also if possible.Thanks