Thanks for all the comments. My dad and I hunt whitetail and muledeer but the majority of it beig mulie. We both shoot 180 grain bulletts out of 30.06s and i shoot 100grain out of my 243 and have killed the majority of my deer with my 243. With that being said the mule deer i killed last year field dressed 260lbs so he was a big boy and i dropped him with my 243. But i want to start getting into bigger game such as elk and i know i will need a little more knock down power. but if i go to higher grain bullet in my 30.06, should i even buy anew or will my 30.06 have enough power to drop one?
A 30-06 will do the job, its just a bigger caliber will give you more wiggle room for error.