Personally I use a Remington Model 700, 300 Win Mag for Elk, and I love it, But a lot of people don't like the recoil of the 300.
A 30-06 does a good job, and some people like the 270.
Kevin
I also use a 300 win mag for elk. I know Alot of ppl do not like the recoil off of the large magnum. Personally I recommend putting a muzzle break on it. I have the Fox River muzzle break on mine and the break is removable. I can put a cap on it and it's back to full recoil.