On mine I bottomed the turret out, took off the cap and measured the distance between the rim and the brass plate of the erector assemble below. Then I put the turret on (without the screw) at zero and cranked it all the way out and got 25.2mils of movement. I them again measured down to the brass plate and got ~3.14mm difference.
Or rather if you start selling these kits, I'm interested
I can print these for folks if desired, need to stop at think about a cost basis though, is there concern about potential variation versus my scope or not really worried since the measurements have relative reference points and will get ya in the ballpark? IE if you put in a -10mil base and 22mils of shims and it dials 2mils past zero then add in 24mils of shims instead. Even if that was 23mils from zero on your scope but it was 24mils on mine. Once you're in the ballpark you're just making minor adjustments. Not sure how much to over think it, haha.
I'd be shocked if there's variation. All the parts have to be interchangeable off whatever process is used for that part.
I wouldn't have thought so either so I went back and looked again and realized my error in the numbers I was typing earlier, I got 3.14mm in 27mils (not 25.2mils, damn decimal place...
) which if Alpha echo got 27.5mils in 3.2mm that ties off.
Can only speak for myself but I'm fine with the zero being anywhere between true zero up to a mil below true zero.
