You guys have all made good picks, but if I could only own one rifle, I'd look to the people who have been getting by with only one rifle practically forever; the Europeans. Due to crazy gun laws, they've had to really think outside the box, and they have some pretty outrageous gear as a result. So THIS is what I would have if I could only own one rifle: a Blaser double drilling, model D 99 Duo, in .270, 9.3 x 74 R, and 20 ga. shotgun! (Hey, the blog didn't say we had to pay for the thing, right?) Give me one of those with a low power, long eye relief scope (or even a HOLOSIGHT) and you name it, I'll put it on the ground. If you want to see what I'm talking about, paste this into your browser. http://www.blaser.de/D-99-Duo.139.0.html?&L=1. For America, a better set of calibers would be .243-.30-06-20 ga., but with the first set you could just about hunt the world. What do you think of this?