Shot placement is crucial. But I like to stack the deck in my favor. Yes, I could use a .270 on Elk, but for probably the same price, I can use my '06 and have the peace of mind that it will have that extra oomph. If you place the shot right, either will put them down. The main problem that exists with the higher power rounds is that people put more stock in their caliber choice than their abilities. If you shoot a .270 proficiently, perfect. If you shoot your 30-06 better because you are more familiar with that, fantastic. You don't need a .300 Weatherby magnum to take a bull elk. Caliber is less important than skill, but a little more power can't be a bad thing as long as you know your (and your weapon's) limits.
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