Sorry to "chime in" so late, the Kontra-Einhakmontage, can be set up using normal parts. It just depends on how you turn them. and locate the bases. For a while, ERA offered them for "standard" bolt action rifles, with screw on bases.I mounted a set on my G33-40, 9x57. They allow lower mounting of the scope and still have the bases on the factory drilled receiver(if it is factory drilled). Since it tips backwards, the scope objective bell does not hit the barrel. I have to remove the bolt to take the scope off my rifle, but I modified the boltstop, so that is a quick operation. The Kontra mounts on a Kipplauf allow lower mounting, without the front base being too far forward(maybe interfering with rear sight). With a Kipplauf, you may or may not have to break it open to remove the scope.
Mike
Last edited by Der Ami; 06/27/16 10:22 AM.