Well, since I have picked up yet another of the above I wanted to check with the 'Sport aficionados on here as to the differences between the different "marks".

Of the five I have, some simply have Feinwerkbau/Oberndorf on the breech block. One has Mk11 below it. One has Series Mk11 on it and I have a known Mk111 which I assumed had the archetypal "dan dare" muzzle weight. I say assumed since I saw one advertised more recently and this really did have what I can only describe as a "trumpet" shaped weight whereas the one I have is parralel sided with deep grooves machined into it with a post foresight screwed into the top. This threw me a bit as until that point I assumed all Mk111s looked like mine??

Anyhooo. For those in the know can you explain what are the obvious (and perhaps less obvious) differences between the Mk1, Mk11, Mk111 models please.

Thanks!

Dave