No. I have a Leupold Mark 4 4.5-14x50 I use as a test mule (not vx4 as I earlier incorrectly stated) to test rifle and/or load accuracy. All targets posted in this thread were shot using the Mk4 scope with the excption of the Scar 16s, which has a Leupold VX-6HD 1-6x. I intend to put 1-6X scopes (Meopta or Leupold) on the Bren2, 805, and APC223 as funding allows.
I agree with your sentiments on the APC223. I will add that I believe it is the finest made factory rifle I own. The stock (I have the adjustable/folding model) leaves a lot to be desired. Two position (or 3?) adjustment, short length pull, and detachable cheek riser (purchased seperately), are all misses. I only have a couple hundred rounds down range (less than Bren2), but while the accuracy is OK, it is not what I had hoped for. I was on a waiting list for the APC308 DMR, and received a call that it was in, but I turned it down and bought another scar 17s due to the above considerations.