Sandpit: I would recommend a "magnum" Rifle for anyone wanting a Rifle dedicated to "Elk Hunting" (and I have lived all my life out west)!
I have killed most of my Elk with a 7m/m Remington Magnum - I chose it not just for the additional lethality but also (mostly?) for the flatter trajectory it offers over "standard cartridges".
I have also killed Bull Elk with these cartridges 270 Winchester, 280 Remington and 30/06.
Yeah when asked (or like you observe "talk about") or when talking about Elk Hunting I do recommend "magnum" calibers.
By the way I have seen (firsthand!) four different "experienced" Hunters kill Bull Elk with Rifles in caliber 25/06 Remington!
Not MY first choice by any stretch, but it did get the job done there in the hands of patient, experienced Hunters.
Hold into the wind
VarmintGuy