I don't have an Osprey. I've been really happy with the Rock Creek prefits that I've purchased over the years. If I timed the sale, I was in for around $500, which seemed fair for a prefit, especially given all the options that they have programed in over at PVA.
I don't need an Osprey. I'm not shooting PRS, I'm not shooting benchrest, I'm shooting steel and anything around 1 MOA is going to work great for me. This isn't a knock, but at that price I can swing for the moon and get a Brux, Bartlein, etc. What kept me coming back to PVA was a great barrel at a great price, with way more options for customization than anyone else doing prefits offered. Anyway, useful to know that the lower (cheaper) tier of barrel isn't coming back.