My cumbersome gun case click-clicked over the lines in the sidewalk, my rearward-twisted right shoulder aching as I dragged it on toward the domestic terminal. In the scarred, quadruple-locked Pelican case bumping along behind me rode a Weatherby 307 Alpine CT rifle chambered in 7mm PRC. Topped with a 3-15x44 Leupold VX-5HD scope and supported on a Spartan bipod, it puts 177-grain Hammer bullets into tiny clusters at 100 yards.