knightrider":1hortza8 said:
Just one it would have to be my 300 win mag
I'm kinda pleasantly surprised how many have said a .300 magnum
My original thinking when I got that .300 Weatherby was
that it would be one gun capable of handling anything I might hunt in North America.
It has never disappointed me.
I'm not sure if that would remain my exact caliber choice if limited strictly to whitetails,
but can say that "one" gun for whitetails would not be a .243 ---- even though I've seen how quickly a .243 will drop the biggest buck with a well placed shot.
Some considerations include availability of the particular caliber, whether you'll be handloading it, etc.
I would also consider the physical size and strength of the shooter.
Also, if you shoot left-handed, you may need to have a custom rifle built to get what you want in some particular caliber.
You'll typically find a lot more stock left-handed rifles available in the more proven and popular calibers.