Kalahari Posted October 1, 2014 Report Share Posted October 1, 2014 Well it can happen to any manufacturer, A flaw in the barrel could survive proof and only succumb to cumulative stress. Fatigue around a flaw which causes a stress raiser is pretty complicaed but also fairly inevitable. David. Quote Link to comment Share on other sites More sharing options...
aris Posted October 1, 2014 Report Share Posted October 1, 2014 Some interesting tests here with regards to obstructions http://www.gunproof.com/Proof_Memoranda/obstructions.doc Quote Link to comment Share on other sites More sharing options...
wymberley Posted October 1, 2014 Report Share Posted October 1, 2014 By sheer coincidence I've just had a chat with someone who knew a bit about this. This occurrence was some several years back. For whatever reason - he knew not what - it was never investigated and no barrel making metallurgist ever got to examine the material grain structure. We've all offered our opinions - most of us as laymen - but under the circumstances we'll never now know the exact cause. Quote Link to comment Share on other sites More sharing options...
welshwarrior Posted October 1, 2014 Report Share Posted October 1, 2014 Some interesting tests here with regards to obstructions http://www.gunproof.com/Proof_Memoranda/obstructions.doc Very good testing there but knowing the scientist who did it all I'm slightly bias. Quote Link to comment Share on other sites More sharing options...
Hamster Posted October 1, 2014 Report Share Posted October 1, 2014 Well it can happen to any manufacturer, A flaw in the barrel could survive proof and only succumb to cumulative stress. Fatigue around a flaw which causes a stress raiser is pretty complicaed but also fairly inevitable. David. So what would be the point of the proof ? I mean if it fails to reveal metal weakness or flaws it's pretty pointless no ? Quote Link to comment Share on other sites More sharing options...
HDAV Posted October 1, 2014 Report Share Posted October 1, 2014 Perhaps the unfortunate owner had been reading the suggestion in "Pull" magazine (so I'm told) that one should leave a wad of kitchen towel in the chambers to soak up surplus oil. Storing barrel down is much safer and easier..... Quote Link to comment Share on other sites More sharing options...
Kalahari Posted October 1, 2014 Report Share Posted October 1, 2014 So what would be the point of the proof ? I mean if it fails to reveal metal weakness or flaws it's pretty pointless no ? No safety check is completely infallible. All one can do is reduce risk, not eliminate it completely. David. Quote Link to comment Share on other sites More sharing options...
dougall Posted October 2, 2014 Report Share Posted October 2, 2014 I would bet a large amount on a complete blockage,no way a modern barrel would let go in that way at that point for any other reason...even a mentally wrong homeload would'nt do that at that point....still would be one very scary moment and thumb of a left hander could easily have been around that side..... Quote Link to comment Share on other sites More sharing options...
motty Posted October 2, 2014 Report Share Posted October 2, 2014 Been very lucky as by that a right handed would now be a one hander and lost a chunk of forearm too. Nasty for it to peel open like that in the forcing cone. Not been putting HP steel through it has he or had a wad stuck in the barrel then fired another cart? Figgy HP steel wouldn't do that. Quote Link to comment Share on other sites More sharing options...
wraivi Posted October 2, 2014 Report Share Posted October 2, 2014 (edited) Several shots of 3" Hp steel or 3" heavy loads in a 2 3/4" chamber will build dangerous pressures in that area. If there was a suspected weak point there, it could have contributed to the final outcome. Its anybodies guess, maybe even a 3 1/2" mag load in a 2 3/4 chamber. Luck fellow to get away unscathed thats for sure. Edited October 2, 2014 by wraivi Quote Link to comment Share on other sites More sharing options...
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