I have a Vx3 with Boone & Crockett (ballistic) reticle in 3.5-10 x40 I could recommend. For 600 yds you might consider a 4.5-14x50
Your question is pretty wide open one so expect a dozen pages of arguments in response. Even so I can't think many would say my recommendation isn't a proper one.
It just depends on if you plan on twisting dials as Doug eludes to.
When a country is well governed, poverty and a mean condition are something to be ashamed of. When a country is ill governed, riches and honors are something to be ashamed of
. Confucius
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