Just try a 270 Weatherby Magnum if you want to see some power! Got one, and its awesome, and so is the 257 Weatherby Mag, and yes, got one of them also, but the cartridges are expensive!
USA allowed this wild immigrant into our country, and we all have to pay the price.
It's not a matter of power my friend. I'll take my little scoped 243 and some camo and one shot will do in any machine gunner, no matter what caliber he has. It's in stealth and accuracy not how big. (It's not how big it is, it's how you use it)LOL