I’m looking to buy an optic for my Nucleus build. My budget is $1500-$1700. Right now I’m can buy a used Razor gen 2 3-18x50 or a new Sig Tango 6 4-24x50 for about the same price. Is one of these better than the other or about the same? My Nucleus is going to be a 308 and used for steel out to 600-800 yards. I feel the power range of these scope are perfect. Is there another scope I should consider? I’d like a Leupold Mark 5 but it’s just out of my price range for the tremor 3 reticle in the 3.6-18. Thank you