We had the opportunity to compare several scopes the other day at a range. Now granted, this was not an all inclusive test absolutely everything scope test, we were basically looking at a pile of rocks below the 1000 yard target and reading numbers and bullet marks on steel at distance. We tested TT, ZCO, MK5, Burris XTR Pro, Kahles 5-25 and the Burris XTR3. I was pleasantly shocked as to how well the Mk5 held its own honestly. This was 3 high level PRS shooters with pro match wins and all 3 chose the TT first and the XTR3 last, the ZCO was second and honestly to me it wasnt a close second to the TT as I would have though, as I used to own a ZCO and really liked it. Two shooters picked the MK5 next and the other the Kahles. For me, the Leupold was the biggest shock of the day. All 3 of us shoot TT but I would not be opposed to shooting a Mk5 at all, maybe I got lucky and snagged a good one, IDK but I am pleased with it.