I live in the middle of Elk country. Many people will tell you the .270 Winchester is marginal for Elk at best. Most of these same people have not used it for Elk either. Although I do not personally use my .270 for Elk, (That's why I bought my .300 Win Mag). The .270 is perfectly adequate for Elk, IF you use the right bullet! Obviously you do, or you would not have posted this question. Kudos for you, as you obviously realize the importance of bullet sellection! My personal vote is for the 140gr. Fail Safe factory load from Winchester. There are other good choices available, such as the 140 TBBC from Federal, any 150 Partition load, or the Swift A-Frame, or the new 140 Accubond loads from Federal of Winchester (I bought a box today at Wal Mart for 23.86). Bottom line, bullet placement is key obviously, equally important is PENETRATION! I have used the Fail Safe on many different animals ranging from Antelope to Elk. All have been quick one shot kills. I have YET to recover a bullet. EVERY bullet exited regardless of shot angle. Meat damage is also LESS than you will get with a typical soft point, or Ballistic tip type. I have also found these bullets to be as accurate as any Ballistic Tip type bullets. I also like the Hornady Interbond, and Swift Scirocco, but they only offer 130gr in the .270, which I personally feel is a little too light.