Re: Kahles ZF 84 question for the guys that know.
Good scope, solid made to take a beating. The BDC cam should have a two or three character's/letters on the side. If it doesn't, then it's a cam for the 7.62x51 NATO bullet (i.e. 145 to 150-gr FMJ), if it is labeled "MH", then it's for the Hirtenberger Match 168-gr bullet, and very close to the 168-gr SMK ballistics. Those are the two I have on my ZF-95's which have centered reticles. I also have a cam for 5.56x45 62-gr, but I can't remember what it's labeled? If you didn't get the manual with your scope, I can photo copy mine for you which is a combo ZF-84/95 manual. It's nothing fancy, just three folded pages with spec.s, and how to adjust the turrets.
I had a ZF-95 6x42 with MilDot, but sold it. I also had a Swarovski labeled ZF-84 6x42 with STANAG mounts on an HK91 years ago. Now I just have the ZF-95 10x42 models, with one having Target Turrets (1/4 moa) and MilDot reticle. It's mounted on my 5R/308, and I use it out to 1000-yards almost every weekend. Great scopes!