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  #1  
Old 11-23-2021, 05:52 AM
Orlando Orlando is offline
 
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Default Might want to watch if thinking of using Turkish30-06

https://www.youtube.com/watch?v=ypqXeh7hFkY
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  #2  
Old 11-23-2021, 07:40 AM
Steve9 Steve9 is offline
 
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What causes split cases, slow action cycling and split stock?!?
Firing just a blonde one, out of battery?
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  #3  
Old 11-23-2021, 07:49 AM
bruce bruce is offline
 
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Ouch. I feel for the man. Looks like all he'll need is a new buttstock and he'll be back on the range with his rifle.



Once upon a time I had a "M" split with some surplus 8mm in a nice K-98. Left me with some little cuts, etc on my forehead and eyebrow. Rifle was not damaged in the least. Store gave me all my money back on what was left of the case of ammo. I used the money to buy ... another gun! Guess that was about like making a silk purse out of a sow's ear. Sincerely. bruce.
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Old 11-23-2021, 08:18 AM
Jeremy2171 Jeremy2171 is offline
 
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Quote:
Originally Posted by Orlando View Post
Seems like this is happening in 63-65 dated MKE.

There is a pic of a visible crack BEFORE firing on the web somewhere.

This is similar to the specific lots of PS 75 ammo.

Not saying it's perfect but you can visually check the bases for anything doesn't look right to see if there might be an issue.
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  #5  
Old 11-23-2021, 10:17 AM
TerryK TerryK is offline
 
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Location: Marion Ohio
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This is why I will not shoot the last 100 rds. of my 64 dated MKE ammo.
Why take the chance of getting one bad shell out of the bunch.
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  #6  
Old 11-25-2021, 01:02 AM
Fenris_Bane Fenris_Bane is offline
 
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Quote:
Originally Posted by Steve9 View Post
What causes split cases, slow action cycling and split stock?!?
Firing just a blonde one, out of battery?
I saw another video of the exact same thing happening.

https://www.youtube.com/watch?v=TleMPyDq56s

This in the video I posted, it was caused by case head separation. In that video, he was using .308 Herter's brand steel case ammunition (a.k.a. Russian Tula ammo.) There was an over pressurization problem and the primers were flatting. Another possible issue was in this video, he was shooting a "tanker" Garand with a shorter barrel.

If the surplus Turkish ammo, from the first video, was also suffering from head separation, then the action would slow down because gas would vent around the bolt before the action opened. This gas also splits the stock.

At around the 0:30 mark he mentions that he had 2 or 3 cases that were "blown out". So to continuing to shoot ammo where the cases are failing is taking an unnecessary risk.

Last edited by Fenris_Bane; 11-25-2021 at 01:05 AM.
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Old 11-25-2021, 09:00 AM
Jeremy2171 Jeremy2171 is offline
 
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The issue us the brass has age hardened and is no longer ductile.

Probably from a manufacturing defect or poor metallurgy
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  #8  
Old 11-25-2021, 09:57 AM
Orlando Orlando is offline
 
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The OP said the rifle felt "different" when firing. Would this possibly be a sign of the powder degrading???
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  #9  
Old 11-25-2021, 10:45 AM
Fenris_Bane Fenris_Bane is offline
 
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Quote:
Originally Posted by Orlando View Post
The OP said the rifle felt "different" when firing. Would this possibly be a sign of the powder degrading???
Could be that in combination with how and why the cases were "blown out". Case head separation would result in a varying amount of gas leakage around the bolt which would reduce the gas pressure applied to the operation rod piston. This would make the gun sluggish to function based on the amount of gas leakage at the breach. As the man say "the action felt like it was really slowing down." (time stamp 0:23)

A very large case separation causes a large dump of gas at the breach which can split the stock.
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  #10  
Old 11-25-2021, 11:28 AM
Roadkingtrax Roadkingtrax is offline
 
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Definitely powder degradation, and subsequent case embrittlement. I understand the appeal of cheap ammunition, but I'd think twice about what I was investing my money in.
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