The .270 is plenty enough gun for elk hunting. It has enough power to spare should you need to shoot through the shoulders or take a raking, quartering away shot. Mine has accounted for 10 elk, 6 for me and 4 for my grandfather and I have yet to need a follow up shot and all but one bullet exited the elk.
It sure is! I used one in Alaska for three years, and the ONLY GAME I did not kill with it was brown/grizzly bears. Everything else up there was easily taken with it, including Alaska-Yukon moose. My load was the 150 grain Nosler Partition bullet with 53.5 grains of IMR 4350....... If one is to use Remington factory ammo, bee sure it is the bonded-core Ultra Corelokts, or the stuff with Nosler Partition bullets......