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PostPosted: Tue Apr 18, 2023 2:16 pm 

Joined: Tue Jan 29, 2008 5:10 pm
Posts: 64
Location: St. Catharines, Ont.
For many years I have had a Hammerli Single that I have rarely been able
to shoot because it uses the obsolete 8gm. cartridges that are not as easily available as the modern 12gm. cartridge.
I think I have come up with a solution to my problem in a very simple manner.
I am now shooting my Hammerli Single with a 12gm. cartridge.
This is how I did it:
The endcap has an aluminum spacer held by a circlip
that I removed from the endcap shell.
At the front end of the external threads at the back of the main tube
is a groove probably used as a runout groove for the thread cutting tool.
I placed a #017 oring into that groove. (11/16 X 13/16 X 1/16)
I placed a 12gm. partridge into the tube and screwed on the end cap but still a gap between the cartridge and cap.
I put a #014 oring (1/2 X 5/8 X 1/16) on top of the rounded end of the Co2 cartridge
and screwed the empty cap over it and over the front oring, tightly.
This sealed the Co2 tube with a 12gm. cartridge inside.
It worked perfectly with no loss of pressure.
I have used it with two Co2 cylinders and 80 - 100 pellets and no problems.
I am again happily shooting this superb target gun.
I have never heard or read of this solution before and invite other Hammerli
owners to try this and see how it goes for them.
It would be nice to find out that many older Hammerli,s have come back
to an active life again.


Logic, has nothing to do with it.

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