I have just acquired a complete set of these Vienna mounts on a Kahles Mignon 4x.That includes the front and rear lower bases.
My problem is my gunsmith has never seen these mounts before .
His questions
A-Is there any tension between the front and rear bases when installing the scope on the rifle ?

B-That is , does the scope require a firm push to click on to the front base?

C_Or does the scope click on without tension ? That is , clicks on freely .

D- Uninstalled the front base has a small amount of front and back movement .It seems to me that a tension is required to take up this movement after mounting on a rifle .

E-Thus is the front lower base worn ?Or is this movement normal in uninstalled mount ?

This is a lovely little scope and mounts but its useless if I cant have it mounted correctly .

Any help would be greatly appreciated .
Thanks