Among the scopes riding my varmint rifles are: Weaver V16 and V24, and Bushnell 4200 4-16x. I don't have a 4200 6-24x yet, but I know some experienced shooters who do and have found the same things. And based on my usage, I would go with the 4200 6-24x on a custom rig, and the V24 or V16 on a humble factory rifle like a Ruger VT. Here are some of my findings:
Loses some image contrast from a little over 20x to 24x.
Fine crosshair reticle good for varminting beyond 600 yards.
Medium turret markings are clear, repeatable clicks have clean feel.
Sunshade NOT included.
Clearer optics to the edge.
Medium turrets have finer complete turn markings and are a little harder for us with presbyopia to read - remedied with a little magnifying glass.
Repeatable medium turrets, but all 3 I've used have sloppy feel.
Glass is fair, but not quite as good as 4200.
No sunshade, either.
To summarize, the V-series is a bust buy on a tighter budget, but the 4200 is money well spent for a more enjoyment. It's one of those situations where you get what you pay for.