The irony is that the Germans issued the low-power ZF-41 scopes to snipers, rather than the more numerous "designated marksmen" who just got a plain K98k. It was clearly more suited to the latter use, but there was a lot of Post-WWI strangeness that lingered over the official use of "sniper scopes". The linked video below (from a couple of firearm/history geeks) explains it pretty well. It also demonstrates that the scopes, once zeroed, could indeed be removed and replaced without losing effectiveness. I always wondered if that mount system worked well.
The mount system is pretty easy to use because I’ve done it and I’m not really fantastic with anything mechanical.