I have a similar Swaro Z7A Habicht, 3-12x50 with 30mm tube.
It's similar in that it doesn't have parallax adjustments or a side focus turret.
This scope is mounted on a Kimber, chambered for the 270 Win (only 270 Win I own)
All I can say about this scope are good things. It's parallax free much further than I would shoot, sharp/clear and the turret adjustments are positive in both directions, without backlash as well as being repeatable without concern.
I have a Swaro range finder and 20-60X straight spotting scope as well as a couple of older Swaro scopes on similar period rifles.
All of them are excellent and reliable under all conditions I've used them, Including -40F to +100F temperatures, wind, snow and rain.
It's pretty hard to go wrong with a Swarovski sight of any model.
As for weight under extreme conditions, such as Sheep hunting, I would rather lose the weight in other places than the scope/mounts. If a couple of ounces on the scope/mounts is going to make or break the hunt or make it to uncomfortable, there are other issues to take care of. Just IMHO of course.