think I was lucky Today, This could have hurt / Chileno Mauser *Pics*

volks_r_us

volks_r_us

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I got that baby off a package deal back about 6 months ago and never tried until today


Took me a while to bring that baby to the range. I had to since, I was gonna give rifle to my step Dad so he could go moose hunting with his friends in 2 weeks. I said to myself better try it before him, just in case we never know.

Well I guess this was a good thing I rather have the problem then him , and its exactly what happened. The freaking thing blew off :x

I got this rifle from a guy that work with my friend he bought in the 60-70's I think.

I bought some Lellier & bellot Ammo from my local gun shop (dante he is the only one in MTL who still carry 7X57) that was the only 7X57 Ammo they had

here is some pic of what happened
Im still not sure of what exactly happened and Why.
I would like to fix but dont know how
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I fired 3 shot with no problem I was actully starting to like this old school open sight thing.

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Brass on the far left is the forth and last shot
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and this is what happened
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The Bolt is stuck this way, it back out when the primer blew. Dunno how to fix this ? can I try to force is back with a rubber mallet ?

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I dont see anything wrong in here
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Now what may have this , bad Ammo of bad gun ?
Can fix this problem if so how ?

thanks guys
 
YIKES! That must have been pretty close to your face! If you weren't wearing safety glasses, I bet you will from now on.

Sorry about your rifle. Hope you can fix it.
 
Gently tap the rear of the firing pin with a rubber or plastic mallet, the firing pin has probably been wedged in the firing pin spring (over compressed) inside the bolt body.

When you get it loose and disassembled replace the firing pin spring, it may be weak from the previous owner leaving the rifle cocked. Check the firing pin tip and check to see if your primers are flush with the rear of the case.

Read below:

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I would take it apart before any hammering. What if there is a little piece of the primer in the firing pin hole. Strip it down and then you will know why its stuck!!
My 2 cents
 
Thanks for the tips on the bolt i was able to disassemble it.
here is some pics

the more I think of this the It scare the s**t out of me. I just took the gun again put on my shoulder that bolt was coming right into my eye.
Yes I was wearing sefety glass but still ... :shock:
I thanks God that German Normally think twice before doing something that they thought of this and had a safety back up mesure :cry:

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I think I'm gonna need some parts :?
I broke about one turn on the spring and the firing pin took a hit , maybe I buff it a bit with a Dremel but the notch will me a bit more deep them factory
 
This is another example why Mauser updated his design when Germany wanted to go with higher pressure level. An why using a pre-98 type with modern ammunition/caliber is not a good idea. They don't handle the escaping gases like a M/98.
Seems like the action worked the way it was designed for. Luckily you made it without a disaster.
I personally doubt the ammo is in cause here. Sellier & Bellot make quite good ammo (not as good as say, Norma or Lapua, but not worse than any others).

Now, if you want to check it by yourself, the firing pin port (the hole from where the firing protrudes) should be about 0.002" bigger than the firing pin diameter, but the M
93/95 sometimes have much bigger port holes. To have a good idea of the port size, use a hard wire wich will be a close fit into the hole an then measure it. Wire gauges are usually used to do so.
The tip of the firing pin must be ROUND, not in a pointed shape. Check out for burrs.
The firing pin protrusion should NOT be longer than 0.065" and ideal protrusion is about 0.060".

If this may help you,
The firing pin spring, of the M93/95 is 0.455"/0.460" OD X 28 turns.
The M/94/96 spring is 0.455"/0.460" OD X 27 turns and may fit.
A M/94/96 firing pin may also work, but the rear end will have to be trimmed. The M/94/96 firing pin shank from the flange to the end of the tip is 41mm long. The spring, extended is 95mm long.

Consulting a competent gunsmith may be a good choice, thgough.
 
I don't know if this makes me feel better or not, BUT

I was shooting that S&B Ammo in 30-06 with my Remington Model 1917 Rifle and of forty rounds of the S&B stuff, the pierced primer happened to me at about the 37th round of the day.

Needless to say I was concerned as well, it didn't cause the same issue as your Chilean bolt, I fired off the last three rounds no problem, no pierced primer.

I will have to check the bolt to make sure the firing pin looks ok, but with seeing this issue, again with S&B ammo, I wonder if its the ammo itself????? :confused:
 
Check you firing pin protrusion, it should be the same as above (0.060" avg)....
Then, if it's OK, contact North Sylva (I guess they are still the importer of S&B) and let them know about the issue. This might happen because some soft primer shells.
 
I had a M48 that had a almost square firing pin that popped the primers like that. Once rounded and adjusted to the proper firing pin protrusion, it was fine.

Get your headspace checked too.
 
If memory serves....

this is why Paul continued to design and improve the action up to the Mod 98 (your rifle is a Mod 96)

the '98 had improved gas escape holes as well as the shield that made them safer to shoot in the event of a poked primer or ruptured case
 
Before you blame the ammo go back up and read the cut and paste from the Sierra reloading manual again, Headspace and a weak firing pin spring are the major causes. From the looks of your photos the inside of the bolt was none to clean and it was way overdue for a good cleaning.

The same thing happened in another forum on a No.4 Enfield with a weak spring cutting the web of this persons hand when the cocking piece was driven backwards by 46,000 CUP of pressure.

The only thing that should be inside your bolt is a very light coating of oil, in the freezing cold of winter this could have prevented the shell from firing. When was the last time your bolt was completely dissembled and cleaned?

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