The .270 will definitely kill an elk with a properly placed shot. I prefer a little more bang, however. IMHO the .300 WBY mag is the best all-around caliber on the market. Accurate, great at long distances and BEASTLY knock-down power. I absolutely love my Vanguard, and even though it is a bottom line Weatherby rifle, it shoots extremely accurately...especially at the range! (Somehow those critters being out there make it a little more difficult)