For the OP and Kirk, there's a good review on snipercentral of the 4200. I think it's an older one but should still be the same? maybe. It shows that the mill reticle is accuate on 12 power for ranging. Here's the link.
http://www.snipercentral.com/bushnell4200.phtml
There's also good reviews of alot of other high end scopes.
http://www.snipercentral.com/bushnell4200.phtml
There's also good reviews of alot of other high end scopes.