How to blowup your rifle

[Scooterbum]

FYI, that is a normal grind mark on an extractor rivet.

 

[Deleted member 46119]

Another Weatherby bolt head, no doubt. I mean the dead guy...

Yes. You took the bait. No it was a Remington R700.

You might consider Pro's (@Swamplord) advice.

Hopefully 2018 will heal your sore backside

Of course, he could follow his own advice as well.

 

[Bowfishn]

I was dead serious and not poking fun at Savage actions, have seen a Rem 700 in 338 Edge stay together after a 300 gr bullet was fired with a cleaning rod still in barrel, action was fused together and damaged beyond use but held together and shooter walked away unscathed, had that been a Savage or Win70 action it would have been flying shrapnel in all directions

Just how sensitive can you get over an inanimate object ? Hopefully 2018 will heal your sore backside

I would say to see if the Savage or Winchester would shrapnel we would have to test them with same load and same cleaning rod.

I will avoid trying to prove you wrong on that one because I don't care to test that out with any action.

There is an interesting read on the 1903 Springfield rifles produced during war time that had been heat treated at wrong temps. and how after they corrected the issue "In 1926 24 high numbered receivers were subjected to pressures up to 125,000 pounds per square inch. None failed." see below:
http://m1903.com/03rcvrfail/

 

[RockyMtnMT]

2018 starts with some bantering!

Steve

 

[Deleted member 46119]

I have a theory. Very cold rifle contracted in dia of bore and chamber. Copper fouling problems. All combined with ammo that had been kept warm in a pocket or such giving the dia of the bullet expansion.

I have feozen bullets and measured them and re measured after warming them up and I was amazed at the amount of size difference.

Steve

Great!

Actual science.

 

[FEENIX]

Feenix,

Why did u like post 79?

Because I like Rich's query. Why?

 

[Deleted member 46119]

FYI, that is a normal grind mark on an extractor rivet.

Sort of. We have seen it before. From one of Remingtons known QC issue production periods.

 

[elkaholic]

FYI, that is a normal grind mark on an extractor rivet.

Understand and apologize! In my blown up pic it looked ugly. Most remmy bolts have that including my own......rich

 

[Scooterbum]

No sweat.

 

[Deleted member 46119]

Back to the subject at hand Steve (@RockyMtnMT) has some very good supporting evidence for a cold action+warm cartridges analysis.

I would like to add, from the pictures. I see a history of hot loads. Under "normal" circumstance this hot load was probably fine. I don't do hot loads much so when I do the symptoms stand out a bit more.

We all know (or were supposed to) that there can be up to %10 variation in burn rate/pressure for the same powder. This could be different a lot, different temperature, different brass and more contributors.

If we look at it from chaos/perfect storm point of view then it can fall under the "stuff happens" rule.

It is a blessing that no one was hurt and the lessons have been learned.

 

[Pdvdh]

I have a theory. Very cold rifle contracted in dia of bore and chamber. Copper fouling problems. All combined with ammo that had been kept warm in a pocket or such giving the dia of the bullet expansion.

I have frozen bullets and measured them and re measured after warming them up and I was amazed at the amount of size difference.
Steve

Steve,
Your theory would be credible, except the action croaked on a 230gr Berger.
And you and I both know - no way is a Berger bullet that tough!

 

[Rich Coyle]

It is a blessing that no one was hurt and the lessons have been learned.

One of my strong suites is ignorance. What is the lesson learned?

 

[Winkfish]

Just a little additional info. The rifle and all the rounds sat at -10 for about 20 min before any shooting. I went through the 190gr rounds before going to the 230s where I had the problem. By the time I got to the 230s I would assume they would have been close to ambient temp of around -10degrees f.

The marks on the bolt look worse than they are. They are more surface scratches than gouged.

I did not have any icing on rifle or action
At the time of firing.

 

[Deleted member 46119]

One of my strong suites is ignorance. What is the lesson learned?

Life is unpredictable. Death is certain.

oh wait

Reloading is unpredictable. Factory ammo is unpredictable.

um, yeah that's true too but not the lesson.

Anything can happen at any time. Hope for the best, plan for the worst.

darn, I don't think that's it either.

Chaos rules.

Yup, that's it. Definitely.