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Case Hardened vs. Coin Finish on Receiver

Discussion in 'Uncategorized Threads' started by yvonne, Jan 5, 2008.

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  1. yvonne

    yvonne Banned User Banned

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    Is one more "desired" or "durable" than the other? Is one more easily maintained? Is it strictly a matter of "looks"? My new gun has.... "The receiver is finished with our new Tinaloyâ„¢ double nickel finish providing extended wear and a classic French Grey appearance".
     
  2. g7777777

    g7777777 Active Member

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    It depends on how the colors come out and the gun-- you do have to keep case colored ones oiled or better even coated with a sealent

    some guns look great with case coloring- I dont like it if you have a lot of engraving on the receiver

    regards from Iowa
     
  3. Brian in Oregon

    Brian in Oregon Well-Known Member

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    TRUE color case hardening is a hardening process. It involves packing the receiver with bone meal and other chemicals and putting it a temperature controlled oven to heat treat it. The bone meal and other chemicals give it the color. This was done primarily in the old days because of the relatively soft metals being used. This has become an art today, and there is a risk of cracking or warping receivers.

    Most color casing today is chemically applied, and does not involve heat treating. It's often even less durable than true color casing, which fades from contact with skin oils and exposure to direct sunlight. However, there is no risk for receiver cracking or warping with chemical color casing.
     
  4. Shooting Coach

    Shooting Coach Well-Known Member

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    I had a coin finished high grade for 13 years, used it in all kinds of weather, and the gun looks like new. Just take care of it. It is not a $200 shotgun!

    Gene is right. Case colored frames with engraving tend to hide the art.
     
  5. phirel

    phirel TS Member

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    Either finish can be attractive, and both can rust. Both are surface treatments. A coin finish is basically a light hot blue treatment and nitric acid treatment. It can show fine engraving well. Banknote engraving is usually finished with a coin finish and the engraving is contrasted with a darkening agent. Case coloring is tricky and can be dangerous to the person doing the finish. On of the other chemicals, mentioned by Brian, that I used was cyanide. Heating cyanide must be done with care.

    Neither give the protection that is offered by platting the gun. I am not a big fan of plating engraved guns, but that is a matter of taste.

    Pat Ireland
     
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