I got out today with the 4-25 for an initial zero and shooting out to 1000 to check data. I looked at the parallax at the 300 yard and out range and it actually worked well when transitioning. 300-500 yard is close and not a lot of adjustment needed. When I went from 600 to 1000 it was basically the same. Set at 1000 I could come in and see and impact 600 yards without issue. I did have the parallax set at the block just before the white block at infinity at 1000 on the parallax knob. It was actually the same setting for the 4-25 and 6-36 at 1000. I have a match in 2 weeks I will be shooting with the 4-25 and will have targets out to 1600 yards so will be interested to see how it does that deep.
It was a pretty hot and humid day and the mirage was cooking today but the glass did very well with it. I put it next to my buddy's ZCO with both set at 25x and the ZCO we both thought it was close but the ZCO was a little better cutting the mirage as most would expect. Had no problem seeing and hitting the piece of shot up grey 6" steel at 550 yards today so The Zeiss did a good job.
I also ended up with about 37 mils of elevation with the 4-25 in a 20 moa mount on a 20 moa base. I didn't notice any shadowing in the edges when topped out in elevation. If I put it on my 40 MOA on the Vudoo I should be able to dial out past 600 yards with the .22LR. That's nice!
Appreciate the update on your thoughts with this scope. Really interested to see how the parallax works when you stretch it to 1600. I know it's not the same class scope but I have a leica amplus that is lacking on the parallax starting around 600 yards. I did order this zeiss but no idea when it will be shipped.