Hello Folks

I have a Satterlee Mauser safety that I would like to have fitted to a Mauser kurz action.

However when I try and fit it the mainspring is at full compression before the cocking piece will turn onto the firing pin – it looks as if the “nose” of the shroud is a fraction too long.

Normally I’d think about shortening the spring but given I have had some issues with miss-fires (I’m pretty sure that they are not related to strike, but don’t want to exacerbate anything).

So if I just have the “nose” shortened will this result in any further issues arising ?

Thanks

Shortening the spring and shortening the nose of the shroud will do the same thing. My rule of thumb is "when in doubt, modify the cheapest part". If shortening the spring causes problems, you replace the spring. If shortening the shroud causes a problem, where are you gonna go?

The threaded part of an original Mauser Kurz bolt shroud is 3mm shorter than the standard/intermediate/magnum .

There is one thing with the modern bolt shrouds you should be aware of.

The original bolt shroud has not a simple hole to guide the striker.
The "hole" is flat on back and bottom to guide the striker correct.

Some of the modern shrouds have a simple hole and only at the front of the threaded part it has the flats.
So shortening the front of the threaded part will remove the flats.

I have no experience with the details of the Satterlee safety.

BTW it´s not enough to shorten the spring , if you will go that way.
You also have to lengthen the flats on the striker.
Good luck

Thanks so much, I hadn't grasped the function of those flats.

The "complexity" and "completeness" of the Mauser 98 design is an ongoing source of wonder to me, modern engineers have done some wonderful things but those who came before were very, very clever men.

If the shroud cannot be moved forward enough to allow the cocking piece to be attached then you need to determine if the mainspring is in full compression or if the "flats" on the sides of the firing pin have run out and the nose of the shroud is grounding into the shoulder area of the main FP shaft. If that is the case, then extending the firing pin flats would allow the shroud to extend further without altering the shroud or the mainspring.