Looks like this may be a good one for my .223 Bushmaster Varmint...Any users of this scope? I found a new in box one for $400 and that seems like a good deal for a quality scope...

That is a good deal on the scope. I have no experience with the illuminated 6.5-20 but my 5.5-16.5 is a very nice piece of glass. (Just wish I hadn't bought the BDC reticle.) It is a clear step up from the Buckmaster, which is pretty nice itself. It's not quite as good as a Conquest, but it is a very good scope, much better than most, and that's a great deal. My only complaint is the adjustable objective rather than the side focus. I think that model also comes with target knobs.

LWD

The Nikon Monarch is impossible to beat for the money. Excellent scope!

I have one with the BDC reticle that I used for the first time today. Hmm...I'm not sure what to think about that just yet. I'm kinda leaning in LWD's direction but the jury is not in yet.