I've had a Nikon Pro Staff 3-9X40 for several years and it's been on 3 rifles. I havbe no complaints with it. Currently, I have it on a Ruger Model 77 .223 and that's where it'll stay. It's just a very good, no nonsense scope at a good price. Many of them now come with the BDC feature, which I don't like, but Amazon.com has them with the standard duplex recticle for $128.13.
They're an excellent bargain at that price.
http://www.amazon.com/Nikon-ProStaf...UTF8&qid=1284855543&sr=1-2-spell
