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Others Greetings from DIANA Germany

Thank you for your response. We know from many experiences that scope movement on the rail will shear off this big screw. I am wondering if a stronger screw would hold up to the recoil or would the metal in the scope rail fail. What type of metal is the scope rail made from? Thank you.

Also have you ever considered replacing the traditional scope rail with a picatinny or Weaver style rail with horizontal cuts that would act as scope stops and compatible with a huge number of scope rings? This would eliminate the adapter needed to properly scope these rifles and keep the scopes low where they belong.
Dear customer, the rail is made out of unalloyed structural steel. We do not think about a switch to a picatinny rail up now. As you can see on some of our Mod. we switched from this up set rail to milled rails in the cylinder directly. For our full power air rifles we always suggest to use our Zero-Recoil-Mount which has a stop pin integrated and which is able to save your scope form any demage. Have a nice day.
 
Dear customer, the rail is made out of unalloyed structural steel. We do not think about a switch to a picatinny rail up now. As you can see on some of our Mod. we switched from this up set rail to milled rails in the cylinder directly. For our full power air rifles we always suggest to use our Zero-Recoil-Mount which has a stop pin integrated and which is able to save your scope form any demage. Have a nice day.
Thank you for your response. I will look at the ZR mounts.
 
The ZR mount supposedly has a scope stop pin. So what I want to know is, does that pin screw into the hole where that bid, fat screw is on Diana scope rails? The other little divots are too shallow to hold a pin in place. Or is the stop pin grooved to match the grooves on the rail, like the traditional Diana peep sights? Anyone have pictures of these mounts?
 
Just Google zr mount and then imagines or videos ..
zr.webp

I'd assume being your not to use that big screw as a stop I'd assume don't use it for a stop pin hole / being it's threaded for the screw and probly mash up then threads eventually..
 
The ZR mount supposedly has a scope stop pin. So what I want to know is, does that pin screw into the hole where that bid, fat screw is on Diana scope rails? The other little divots are too shallow to hold a pin in place. Or is the stop pin grooved to match the grooves on the rail, like the traditional Diana peep sights? Anyone have pictures of these mounts?
We ran one on a Diana 350mag and it just couldn't keep zero. Now to be fair the scope was a wire reticle Cabelas branded scope but my brother figured it should be fine with that mount...nope! I recall reading of people having zero shifting issues with this mount (the first ones made), we have yet to dig into whether the mount or the scope is killed...one of these days! I can rock the mount back n forth on the rail...hmmm.
 
Dear Diana, I live in the United States. I am collecting Vintage Diana airguns. However, I was looking at the Model 34 EMS. Where can I get the parts to shim the barrel for droop or change the sights or change the piston? I recall reading an article about the modularity of these guns when they were first introduced at a trade show, but I don't think I ever saw the parts to make the promised modularity a reality. Thanks.

Second question: would you ever consider replacing the scope rail on future versions of the 34 EMS with a steel dovetail rail with a deep hole for a proper scope stop pin? Or change the rail to make it removable and have the option of replacing it with a picatinny-style rail? There really is no reason for it to be so difficult to properly mount a scope (as low as possible) and avoid movement under recoil. After so many years, why has there been no improvement in scope mounting systems for your airguns? Thanks for listening to my questions.
 
Hey DIANA fans

Thanks for your questions about the scope rail or in detail about the big screw at its end. To make it short – you are correct. Its function is the scope stop pin as a more or less good solution due to the wear of the screw after a few shots. However this was an explicit wish of RWS which DIANA follows. So this big screw was not the standard for DIANA airguns other than sold in USA. Hope this enriches your DIANA knowledge. Stay inquisitive. Greetings from Germany.
Dear Diana and all, I think I found a better answer to my question. If HAM permits a citation to another forum, here is an explanation of the big, fat, scope rail screw from Hector Medina:

 

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