Variance in Mauser 98 firing pins (pic's up)

[tokguy]

No pic's yet...tonight, promise.
I've a 1914 Danzig with a Waffenamp't bolt, doesn't match S.N. obviously. Works fine. Mix master ( WW2 bolt), but works well.
I bought a 1920's reworked 98, nice ( if some poorly treated ) carbine...knife handle bolt, Lyman peep ( how I deduced the era actually),a little engraving. Replaced stock etc.
The rework has a much larger diameter pin hole in the bolt body, the pin itself if about 0.013 larger at the tip and the same further up the taper as well. It is big enough that the carbine shows a telltale pressure sign...primer flow.
Now don't lose your minds saying it's a 0.318 bore, it's not. Mic's out at the same as the Danzig...right around .32
The firing pin hole is large enough to allow some primer flow, large rifle CCI primers used.
Shooting the exact same recipe through both rifles, it's the bolt's enlarged firing pin that is allowing the primer flow. Even swapped the bolts ( after careful examination of course...but, it's a K98...strong like bull), the flow follows the bolt from one gun to the other.
Any Mauser guru's seen this before?
I'm thinking that Magnum primers might be a tad more robust...cut back on the alarming pressure signs. Because til one looks into it further, the fired cases say ' Whoa MF'r...dial it back!' . But the loads used; even the milque toast one's, show primer flow in the reworked carbine ( and the 1914 Danzig) when the 'larger diameter firing pin' bolt is utilized
Clear as mud? Likely not, but I tried to get the gist of the situation across, lol

 

[gaff]

sounds like your looking for a new bolt body.

 

[9.3mauser]

But it's not really a pressure problem if the loads are safe when used with a different bolt. You have the "symptom", but the symptom has a different cause than rounds that are too hot. If the primers aren't being pierced or punctured, I'm not sure I would worry about it.

 

[bearhunter]

Harder military type primers may or may not make a difference.

It isn't all that uncommon for milsurp bolts to have worn firing pin ports. The military fix was to replace the bolt body with a new one or a replacement from an otherwise unserviceable rifle.

There is one thing you can do but it may be more expensive than replacing the bolt body. That is to have the firing pin port bushed with a proper sized port machined into the bushing before installation.

I suggest you look for a STANDARD K98 Bolt.

There are some Yugo made Mauser K98s that are slightly shorter and that goes for the bolts as well. Their parts don't interchange. I believe these were Serbian Mausers, originally chambered for the 7x57 round. Please feel free to correct me on this as it's being drawn from a long time back memory.

TURF THE LIBERALS IN 2019

Liberals really like POOR people, they're making more of them every day

If you can't vote CPC, stay at home in protest