doublegunshop.com - home Forums General Discussion DIY Gunsmithing @ doublegunshop.com stock repaor by Oscar Gaddy

Can anyone tell me if Oscar put a wood or steel rod in a stock broke at the wrist? I have a gun he repaired and question the strength there of.

BL,
I don't know the answer, but maybe you could find out if your stock has a steel rod in it, with a "stud finder".
Mike

I have no Idea who used what? Though the only metals to be used as splints and pins for gun stocks is Brass or better still because it is even less reactive Stainless steel.

I doubt that, Mike- Most all stud finders I have ever used were sensitive to the nail heads found on the drywall nailed to the stud face-- drywall is gypsum, but a hardwood like walnut with a nail beneath its surface---???? Der Fuchs

Der Fuchs,
The first stud finder I had worked with a series of small magnets that pivoted and reacted to nail/screw heads, just like you said. The newer ones electronically sense differences in density, though.
Mike

One could always run a bolt into a scrap of wood and see if a stud finder (or orienteering compass or magnet) can detect it. But I'm with Mike. Moderns stud finders use ultrasound or something else, to find cavities. They do not need metal screws or nails to find studs, and they would be worthless in this application.

You could try to get it x-rayed somewhere. But if Oscar did the work, I suspect it will probably be just fine.

All good ideas but the way to find metal objects in wood or any other non magnetic material is to place the object in an AC magnetic Field.
Going that increases the foot print of the metal you want to find, this will also work for non magnetic metals too if using a pipe and stud finder.

Did Oscar perhaps consider using a fibre glass dowel or even a carbon fibre dowel . They are being used by some people now.

Just a word of caution about carbon fibre. It is strong, lighter, tougher than steel but it does have an chillies heel. The resin used to bond some of it can be degraded by oils amongst other things.

I'm thinking, why not just shoot the gun. If the previous repair fails, then decide what to do with it. What changes if a pin is discovered, or not?

If it ain't broke, don't try to fix it.

A stich in time saves nine!

CF is used a great deal now in the building of high performance boats, because of it's very light weight to strength ratio, and is laid up using resins that are ordinarily used with fiberglass. There is oil and gasoline prevalent in the fuel cell area of these boats. And, the problem you mentioned is not a problem with the CF, but with the resin itself used to lay it up, right? So, how can the problem be with the CF? Anything, when used in conjunction with an inappropriate partner material, can fail. That is not the fault of the material itself, but rather the procedure and other materials used.

Which resins exactly are the problem ones?

SRH

Woops!! just dropped my crystal ball.

Wikipedia will do that to you......

SRH

Wikipedia wont help that much because a lot of the Carbon fibre sheet is pre impregnated with the resin and just requires heat and pressure to make the bond. Though you will find that the resin used is part of the manufacturing process and therefore cloaked in manufacturers non disclosure.
All that said the longest length of metal I have ever put in the wrist of a gun stock is six inches by 10mm (three eighths of an inch diameter). Though it was not a solid piece of Marine grade 316 stainless steel rod I put a 6mm hole through making a tube to reduce the weigh and still giving enough support for the break because Marine grade stainless is dam tough. So carbon fibre rod held no interest because I doubt that there was much different in weight but a good difference in cost, also as I said stainless is far less reactive.

Amen to what Craig said. I have a hammer gun that was completely broken through at the wrist. No idea who or when it was repaired but it has since shot a lot of shells and has held together perfectly. Just shoot it and don�t worry. Now, if you�re considering buying it you have a powerful negotiating point on your side.