Well finally got out today with the Gen III on the Vudoo and met up with my buddy Gary
@DownhillFromHere at Woody's to compare the Gen III, Gen II and ZCO 5-27 side by side. Well also to shoot some rimfire to 540 yards also.
There were some broken orange clays out at the 540 yard line which worked out perfectly as a judge of clarity and sharpness. The Gen II worked as many have seen in seeing the broken clays but not sharply. The Gen III and ZCO side by side were tough to give a winner to. We had both on 27x. Gary thinks he would give a slight edge to ZCO and I was seeing almost the exact same clarity and sharpness of the broken clays. It was an overcast day with a hint of sun coming through so a good time to judge as it wasn't bright sunlight day. Both the ZCO and Gen III have great glass.
I also looked at reticle available at 27x also. With the ZCO there was about 7.2 mils to the bottom of the FOV at 27x. The Gen III was about 7.7. Not a big difference as both seem to be fine and give a good FOV.
We did a quick zero at the 50/100 range before going to the 100-540 yard range. Zeroing was nice and easy with the one screw set up. I like it. Went to the 100-540 yard range and put up a little three target swinger at 100 and they had steel at 200, 300, 400 and 540. Got on at 100 simple enough and then went to 200 and got the wind hold and hit and then 300 for same and then 400 with 21.5 mils dialed on and 2 mils of left wind and dropped three shots into about a 4-5" group and then went to 540 and shot the silhouette. 540 was a dial and hold as I dialed on the 26 mils I had in the scope and held another 6 mils over and 2.4 mils of left wind hold. Dropped three on there as well at about 5-6". Could see the impacts on the white steel very easily.
I kept track of parallax and at 50 it was on and at 100 it was on the 100 mark and same for 200 and then started being a little off but as all of us know those marks are just basic references anyways.
I also spun the dial watching for any issues with the knob locking up on me as some have mentioned and I didn't have a problem. I plan to wait until I shoot it in a match and see if there is a problem and if so then just do like some above have. I felt the knob lock and unlock on both the ZCO and the Gen III and the ZCO is a little stiffer in locking/unlocking.
The 7D reticle is nice with the .2 mil marks for hold overs/unders. It worked good for the holdovers I did when shooting 540 and also when I played around at 200-400. I kind of wish it was fully illuminated and not just the main crosshairs but again when I start shooting matches I will see if it matters or not.
All in all I am very happy with the Gen III. I have another on order and that will go on the centerfire when it comes in for those matches.