Keep in ming that archery hunters kill elk every year, and all reasonable centerfire rifles are more powerful than a blade a 300 FPS.
A week ago today I was high on a mountain in Utah watching a guide quarter an elk. He said he'd rather have a hunter show up in camp with a .270 Win that he can shoot than a magnum that he can't.
I agree with Mac: a .243 Win in the boiler room is a lot better than an '06 in the guts. But that's merely my opinion that mirrors Mac's.
