Gunbarrel Xray

[Hurricane ( of Virginia)]

Have a great Holiday. Antique longrifle barrel Xrayed. Please interpret!



Hurricane

[kaintuck]

Barrel cut and spliced....

And alas......the moderator has no humor.....

So, even though I think I know what it is......I won't tell...

Tomtom

[Hurricane ( of Virginia)]

 Splice is right.  Not recognized or known to the seller. Xray by the new owner. Why is there a second "ring"? What are the "1" and "O"?   What is the object in the barrel to the right of the "O"?
Hurricane

[CMS3900]

Here are my guesses:

The two rings at the splice look like the "0" side was machined so that "1" side would press into it. With only knowing that the denser the material under xray, the whiter it becomes I would say that the "rings" could be solder, epoxy, copper or any material less dense than the iron it's contrast to.  The 1 and the 0 are bright white and well defined, which I would assume would need to be lead, or a similarly dense substance. My guess is that they are just lead numbers used to lay on or next to the part to indicate reference points or direction in the Xray. 

The object to the right of the "0" to me looks to have two faint cracks above it, and a faint trail from the right. My best guess would be a front sight bead that was removed and filled, possibly when the chunk of barrel was re-purposed, or a heavy burr inside the barrel from someone putting something they shouldn't in it.

[Mark Elliott]

Splice is right.  Not recognized or known to the seller. Xray by the new owner. Why is there a second "ring"? What are the "1" and "O"?   What is the object in the barrel to the right of the "O"?
Hurricane

I don't think that object is in the barrel.  I think it is part of the barrel tenon.    As the "1" and "0". I think they are markers placed on the barrel to orient it in the x-ray.   There are always such markers placed on medical x-rays.   By the way,  that was a very expert splice; turning one of the barrel segments down and boring the other to accept the turned segment. 

[ddoyle]

0 and 1 are lead numbers. We are missing all the crucial shot data though. Not possible to get an interpretable "one shot" picture of a pipe shooting straight across like that. If it were the sour gas industry would be ecstatic! Yes there is lots to see but there is lots not being seen.

From what is there:
 yes cracks above the object to the right of 0.

The inclusion/void/slag to the left of 0 is begs further investigation.

There aint much meat on the left hand side of the splice and there is a void between the two pieces
                               
                           

Of course there is no ASME Code for 100 year old 9,000 psi recreational tubes but if there was my guess is they would indicate that this is not shootable.

[huntinguy]

If it is a weld, that area is darker, hence less dense. Void maybe. Lead would be lighter, not sure what silver or brass would look like. I agree, needs more images from other angles to make a more intelligent response.  But, then again I am not train in NDT.

I wouldn't shoot it.

[ddoyle]

Huntinguy, if you can spell NDT correctly 9 times out of 10 then you are probably eligible for a ticket.
Good deal fastest route to Journeyman's wages that I could sniff out.

[huntinguy]

Could that possibly be a repair done to move a dovetail?
I so wish there were more x-rays showing the radial clocking.

Ddoyle: my card is not for nondestructive testing.  But in the past I have submitted a sample or two.

[frogwalking]

Don't you hope the dark area around the shoulder is not an O ring?

[KNeilson]

Huntinguy is right, the darker , the less dense  the material is. Numbers are lead, usually placed to indicate direction and or distance. If using x-ray to judge mat thickness, quite often a lead "stair" is placed on the film and shades of grey from it can be compared to the object being examined. There is definately a "gap" in the splice, I see three pieces of material. The 0 part, the 1 part and the spigot attached to the 1 part. The dots and "cracks" I believe are pits and /or erosion on the outer surface. An oblique shot could provide  more needed info as well as a normal picture. With what we`re given, I would say that there is very little structural integrity to the joints left (rear) side, definately more information would benefit analysis.... as a disclaimer, I am not professionally trained in radiology but have viewed x-ray/ performed lots of welding QC over the last 30+ years... my 2bits    Kerry

[JCKelly]

A fine illustration of why I do not (no longer, anyway) shoot old guns