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02-20-2014, 06:49 PM
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David
It is a blessing that no one was hurt in this accident. You are fortunate this did not occur with fluid steel barrels. Yes I am defending Damascus. Without the gun in hand for testing, I can't make any definative statements, however, I can offer a cursory opinion. Only two things can cause this type of failure. An extremely over pressure shell or a rigid obstruction at the forcing cone. This type of ripping of the metal indicates a single event failure, not a mechanical or structural problem. When fliud steel barrels are exposed this type of pressure they will usually demonstrate longitudinal cracking and more fragmentation with little or no bulging. The photos show considerable bulging prior to the metal shearing off. This attests to certain maleable property I have only seen in compostie steel Barrels. A lot less shrapnell and a more gradual release of pressure. The stock breakage is due to gases escaping into the receiver via the firing pin hole. The beautiful patterns are not the only reason that Damascus Barrels were considered Premium. Brad |
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| The Following 15 Users Say Thank You to Brad Bachelder For Your Post: |
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02-20-2014, 06:56 PM
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You might see some evidence of gas escape into the stock head through the hammer holes if you remove the stock head. I have seen barrel ruptures before without this back pressure that erupted into the head.
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| The Following User Says Thank You to Bruce Day For Your Post: |
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02-20-2014, 07:44 PM
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Brad you are certainly more knowledgeable than me on this subject, however wouldn't the stock have split or blown at the head, instead of causing a 90 degree break across the grain at the grip?
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02-20-2014, 07:51 PM
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How could a stock break occur due to a much greater level of recoil when the load was a low-power load?
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02-20-2014, 07:59 PM
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my son has used 40 grains of 7625 in his Damascus ten gauge greeners with no problems this don't make sents
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02-20-2014, 08:16 PM
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Thank you all for your opinions, suggestions, and good wishes. The main reason I was not injured, good safety glasses and gloves. I take a bit of ribbing once in a while but with out them my hand would have been cut.
Now on to a better description, the shell blew up, the only part we found was about half the plastic hull. I will continue to look for the brass head and the piece which blew off the barrel but rain and a lot of snow has kept the range closed. Back blase caused the gun to open, this back force plus the downward pressure snapped the stock. Everyone who saw it happen said the stock was broken before I dropped the gun. It was the top part of the stock and action which hit me. The hull was a Federal and it have been reloaded a number of times and in eight or nine years the first to fail in any way. I have had other shells blow up on me (Cheddite is very bad I limit them to no more than 3 reloads) but the guns have remained intact. I have checked all 12 of the other hulls and all have there base wads and I broke the bird on 4 high. Could there have been an obstruction in the barrel, I do not know for sure. These are the things I know for sure. I am going to get all three and the gun that are going to the Southern checked out by experts and two others are going to be sleeved one in 28 and the other in 410, never ever want a repeat. A lot of old hulls will also be hitting the dustbin. Dave The photo was correct the the left chamber was deformed |
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| The Following User Says Thank You to David Yeatts For Your Post: |
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02-20-2014, 08:52 PM
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Do you still have the hull that blew? Is the base wad intact?
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02-20-2014, 09:32 PM
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David, as others have said, sorry about the gun, but glad that you're ok.
So, how many reloads is too many for a hull ( I know it will vary per brand)? I tend to visually inspect my hulls before using them to check the brass and the ends for splits, etc. It sounds like this may not be good enough, and no matter how good the shell looks it should be discarded after a few uses? Mike
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"A strong body makes the mind strong. As to the species of exercises, I advise the gun. While this gives moderate exercise to the body, it gives boldness, enterprise and independence to the mind. Games played with the ball, and others of that nature, are too violent for the body and stamp no character on the mind. Let your gun therefore be your constant companion of your walks." - Thomas Jefferson |
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