So I'm finishing up an SPR style build with a WOA 18" barrel, and I'm trying to wade through the sea of LPVO's out there to find which one I'd like to finish off my build with. My build is a .223 and I'd like to be able to use it for both closer range 3-gun style shooting as well as stretching out for longer 500 or 600 yard shoots. I'm looking to spend $600 or less ideally, but I'd be willing to stretch that a little if there are significantly better options. I'd be willing to buy new or used if it stretches my buying power. I've been looking at the Burris RT6, the Vortex Strike Eagle 1-6 and 1-8, the Athlon Midas BT4 1-6, and the Steiner P4Xi. Anything that I'm missing, or any clear winners in that price range? Thanks!