Have any of you guys used the Burris FFII Tactical scope? I've used several of the regular ones on hunting rifles and have always been extremely happy, but I've never used one on a tactical rifle. Well, recently I bought one of the tactical ones in 3-9x40 because I got a great deal on it used. Realistically I don't know what the heck I'm going to put this thing on as I don't have a rifle that needs a scope right now. Now I'm debating if I want to keep it around for a future project, or if I should just sell it off. For those of you that have used them, did they track well? Were the adjustments repeatable?