GSP, I have been using the P-223 3-9 BDC 600 for a few months now. So far it was worked very well for me. I have only shot at paper target's from 50 to 100 yards with no changes in accuracy or need to make any additional scope adjustment's after initial 100 yard zero. Make sure you check out Nikon's Spot On Ballistic Program to dial in your scope,rifle and ammo for maximum accuracy. For 2013 Nikon now has a P-223 in 4-12 BDC 600 to add to the P-Series line of scopes.
http://i1216.photobucket.com/albums/dd363/bman940/p-2233-9.jpg
