Allrights guys, I think I have it sorted! Thanks, Bstanko6, I found your attack disc tutorial. I see you're not using the Ahnanerbe One, but the main principal is the same I'd say. The only thing that's different on my wheel is I have to divide some numbers by 2, then it's pretty much the same as the one you're using. The weird thing is that on the periscope tick marks it looks like it should be counted as times 2, but on the wheel you need to put 2x times lower numbers, hm. Anyway

Thanks, I think I can finally use it properly!