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excess pressure on swedish M-96?

Sling Works
I am seeking an opinion on a situation I am experiencing on one of my swedish M96 rifles....

I recently acquired it, but only just shot it this weekend-and I believe I have just encountered an excess pressure problem with it..

The bolt is somewhat to fairly hard to lift after firing, although no brass shows sign of damage, or primer cratering...

I have shot many swedish mauser rifles in my life, and every other swede extracted smoothly and flawlessly each cycle with no hard lift of bolt experienced...

The rifle with the hard lifting bolt is a museum quality Oberndorf 1899 date all matching rifle, (pristine condition) and I fired both commercial 140gr and surplus M94 and M94/41 ammo in it.
All gave the same effect of hard bolt lift.

Any comments or suggestions? (Hope I dont hear retire the rifle!) :)

Has anyone ever heard of a Swedish 96 experiencing a failure?
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Comments

6 comments

Date Votes
  • richbug
    Set back lug recesses from someone hot-rodding it?
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  • jonk
    Could be a headspace problem too; I've seen them with excessive headspace that caused primer back out that made the bolt sticky opening. As I handload I just correct it with neck sizing only but it is a possibility.

    Or yes, it could be set back lug recesses- though Swedish steel and the stuff the Germans used (generally from Sweden) was very good and you'd have to really run the load hot to set back the lug recesses.

    Could just be it is sticky too. Some bolts are more broken in than others.
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  • Tailgunner1954
    First question, how is the bolt lift after you DRY fire the rifle?
    Have you cleaned out the locking lug recesses and greased them?
    Have you stripped the bolt and removed all traces of dried grease?
    Has someone converted this rifle to a cock on open system?
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  • givette
    "Varnishing" of grease, (or pitting from lack of use/inspection) in the ring recess or bolt lugs, or both. Red flag when you said "museum quality". That means no one [cycled the action] perhaps for many, many years. Did you have to de-grease the bore?

    Hope it's dried cosmo/grease, not rust. Best, Joe
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  • Sling Works
    thanks for the thoughts guys, perhaps this rifle isnt fully broken in as mentioned...

    i carefully cleaned and inspected it 100% before firing, it did have some small traces of dried grease in the receiver lugways...everything has a brilliant shine. i also cleaned the bore/chamber quite well also before use.

    the everything feels fine on the dryfire.

    interesting the idea on headspace, i'll check it with guages when i get a chance, didnt think of that possibility.
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  • MIKE WISKEY
    "Set back lug recesses from someone hot-rodding it?"... +1
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