It's the kind of event where you can consider life's possibilities with your own .50 caliber long-range sniper rifle, accurate up to a mile. Only $5,299, if you have the right permit and the ability to take a recoil strong enough to shake dust from the ceiling tiles. Not one, but several models are displayed today through Sunday at the Charlotte Convention Center, as part of the National Rifle Association convention. If that strikes you as unusual, you obviously... (GunPolicy.org)