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KaiserKong
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Adjusting ejection force on Swiss Martini
Jan 11th, 2026 at 11:16pm
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Hi all,

Just curious if anyone else has had a similar experience. I recently bought a fine old Swiss Martini rifle in the rimless 7.5x55 Swiss (GP11) cartridge. One thing I noticed upon trying it out was that there was minimal ejection force when I pushed the lever forward. The brass would extract slightly but I had to use a screw driver to grab the extractor groove and gently push out the brass. 

After studying the below diagram from Otto Maretsch's book and playing around I realized the problem was that the falling block (B) wasn't moving low enough to contact the ejection lever at point E which would then rotate part A to ejection the brass. 

In trying to find a fix I noticed that at the bottom of my block were two holes. I'm not sure what the function are but what I ended up doing was sticking a small wood dowel into one of them to as shown in the second picture. After some trial and error I found the right depth of the dowel. When assembled now that dowel presses on the bottom of the ejector and allows it to rotate enough to eject the brass. 

This is my first Martini, could anyone else tell me if their Martini blocks also have such a hole and what they are for? Does anyone else have a plug in theirs to do the same thing here or should I go file for a patent?  Grin

Cheers!
-David
  
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DoubleD
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Re: Adjusting ejection force on Swiss Martini
Reply #1 - Jan 12th, 2026 at 9:03am
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True Martini actions don't have ejectors.  They have an extractor that will eject brass on enertia.  You have to snap  the lever open to make it work.   

This not only snaps the extractor back, but will also compress the main spring a bit, lowering the block and  allowing the brass to be thrown out.

If you ease the action open the brass is extracted. If you snap the action open brass is ejected. 

Test by opening the action.  Then pull the lever down and see if the block moves down little  more.  At rest most Martini breech blocks will partially block the chamber. Pulling the lever lower the block to clear the chamber.

I am not sure this applies to all the various types European Martini's, but those that I have seen, this does apply.

  

Douglas, Ret.
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KaiserKong
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Re: Adjusting ejection force on Swiss Martini
Reply #2 - Jan 12th, 2026 at 11:14am
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Doubled,

Good point I should have used the word 'extractor' and not 'ejector' to describe the lever in the diagram and the problem I was having.

This is a Swiss Martini so it is a true Martini, only the Germans made the 'false' Martini derivatives. I have tried opening the action lever fast and slow and was still having the same problem. There simply wasn't enough contact between the block and the extractor lever to move the extractor. So the wood plug/dowel press fit into the blind hole solved the problem. I'm just not sure if that is a piece that was missing on mine or if the block typically should have enough contact to move the extractor.
  
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DoubleD
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Re: Adjusting ejection force on Swiss Martini
Reply #3 - Jan 13th, 2026 at 9:37am
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Well the drawing does show a projection on the tail of the extractor which could/might/maybe serve the function of your wood dowel.  Wood won't last long. In my experience as used in this sentence, "last long" means somewhere between the next shot and forever.   

With the lever down and action open, can you pull the lever down more against the spring tension of the main spring and have block drop a bit more?  For that matter can you push the front of the breech block down against the mainspring tension?   

It may be that the mainspring is to long or too heavy, resisting compression and  restricting full rotation of the block.  Might not be, but it is something to check. 

Martini breech blocks don't really go up and down, they rotate, the go around and around. Anything that slows that rotation slows an already weak extraction cycle.
  

Douglas, Ret.
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AJ
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Re: Adjusting ejection force on Swiss Martini
Reply #4 - Jan 13th, 2026 at 5:53pm
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Might try replacing the dowel with a roll pin trimmed to length.
  
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