Recently had a .338 Edge done and would like a scope that can get me out to 700-800 yards efficently. Does anyone have any comments or feedback on the Vortex Viper 6.5-20x44mm scopes? Can they take the recoil and muzzle brake blasts? Gun is 30" 9.3 twist Broughton barrel,Rem 700 standard long action,custom Ewallace muzzle brake. about a 15 pound gun without scope and rings. Using Leopuld 20moa 1 piece base and Burris extreme 30mm rings. Is this $400 scope really a good bang for the buck?