I used to have a Vortex Viper 6.5-20x44mm scope, but I would like to upgrade to something with better glass. I'm ready to buy and am looking at a VX-3 6.5-20x50mm with Varmint Reticle (for hold overs) and 30mm tube for $900 or a VX-3 8.5-25x50mm (same reticle and 30mm tube) for $970. The gun it will go on is a Remington 700 with 26" heavy barrel, McRees Precision chassis, EGW 20 MOA base, 308 Winchester. My goal is to shoot precision competition and have the ability to reach 1000 yards. Which scope would you with between the two I have listed or suggest another for less than $1000.