I was thinking a mark 4 6.5x20 but have since seen the mark 6 3x18. I like the weights of both and like the mag range of the mark 6 better but the price is a little steep. This is going on a 7mm-08 for hunting and shooting long range steel. I like the vortex except the weight. That is a deal breaker for me. Is the mark 6 that much better or no? I want FFP and matching turrets/reticle. Am I missing another scope? Thanks