Diana 66 aka Gecado mod 65

E

exomax

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Eastern Ontario
Anybody out there who can provide me with some more information regarding these fine air rifles ?

I ended up with one in decent shape (~40 years old) and am not sure if there are still parts available ? It seems to be a high end rifle which still shoots very well. Speeds with RWS Miestermacher in the 470fps region.

The GISS system seems to work also.

Thx
 
I had a Diana (marked Gecado) 65 that I purchased new around 1973, and owned it until about 2000. I bought it along with a brand new Diana (Gecado) 35, and I believe that the 35 sold for $150 and the 65 was $300. When I sold it, it needed a set of seals and I was able to get them without difficulty. That was the only service that it saw, or needed, throughout the time that I owned it. The gun functioned perfectly and was very accurate. I distinctly remember the first time that I fired it...the firing behaviour was so smooth and vibration- and recoil-free that I thought something was wrong. I was astounded when I opened it and found that it had indeed fired.

I don't remember that terminology "GISS system"...is that referring to the dual piston recoil-cancelling technology? If so, it works like a charm. I heard at the time that it was considered to be somewhat less durable than the inertial-type recoil-cancelling system used by Feinwerkbau, but in my experience this was a very precise and nicely-made gun. Being a barrel-cocker it was only a small step below the side-lever-cocking Feinwerkbau match rifles. We would regularly use it for shooting flies and hornets at 30 feet with excellent results.

Congratulations on your find...I wish now that I still had mine. I might actually have the owners'manual, and if I locate it you're welcome to it.

John
 
jjohnwm said:
I had a Diana (marked Gecado) 65 that I purchased new around 1973, and owned it until about 2000. I bought it along with a brand new Diana (Gecado) 35, and I believe that the 35 sold for $150 and the 65 was $300. When I sold it, it needed a set of seals and I was able to get them without difficulty. That was the only service that it saw, or needed, throughout the time that I owned it. The gun functioned perfectly and was very accurate. I distinctly remember the first time that I fired it...the firing behaviour was so smooth and vibration- and recoil-free that I thought something was wrong. I was astounded when I opened it and found that it had indeed fired.

I don't remember that terminology "GISS system"...is that referring to the dual piston recoil-cancelling technology? If so, it works like a charm. I heard at the time that it was considered to be somewhat less durable than the inertial-type recoil-cancelling system used by Feinwerkbau, but in my experience this was a very precise and nicely-made gun. Being a barrel-cocker it was only a small step below the side-lever-cocking Feinwerkbau match rifles. We would regularly use it for shooting flies and hornets at 30 feet with excellent results.

Congratulations on your find...I wish now that I still had mine. I might actually have the owners'manual, and if I locate it you're welcome to it.

John
Click to expand...

Thanks John!
Read on a forum yesterday that GISS refers to the name of the designer of the dual piston recoil-cancelling technology. It is indeed a very nice shooter. No felt recoil and very smooth. A keeper, for sure. Good old quality.
Spare parts seem to be readily available, so she's good to go for the next 40 years :)

EM
 
Umarex in the u.s. Ships to Canada and seems to be well stocked with Diana parts. Yours should have the giss system, recoil reduction with opposing springs that really reduces recoil. If you need a rebuild I understand them not to be for the ordinary guy, leonardj may be the guy to look to if you need repairs.
 
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