Case color comparisons?
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Thread: Case color comparisons?

  1. #11
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    I don't believe the heat colors correspond to CC colors because the temperatures are different. I'll ask Clyde and get back to you boys.
    JP

  2. #12
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    don't think they do either. totally different process

  3. #13
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    Well, after one year shooting(and cleaning) "true powder" loads, the colours will be nothing more than a memory. Those who still have pristine colours on their SAA revolers. Are doing it wrong.

    Sorry. Personnal peeve of mine. Carry on.

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  5. #14
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    More guns lost there finish from cleaning than they ever did from use...

    Peeve of mine as well

    No finish, no pits. Perfect bore. 1912 Bisley.

    Last edited by Cozmo; 07-11-2019 at 01:51 PM.

  6. #15
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    Quote Originally Posted by Yahoody View Post
    More guns lost there finish from cleaning than they ever did from use...

    Peeve of mine as well

    No finish, no pits. Perfect bore. 1912 Bisley.


    Those. Are my kind of guns.

    Honest to God well used and maintained guns. And yes, it was not the use that wore out the finish, but the cleaning. But in the days of corrosive primers, not to speak of hygroscopic residue, if you didn't clean them they would decay pretty fast. I saw many ruined bores on early XXth Century guns that were seldom shot, but not cleaned. Just because smokeless powder residue "wasn't harmful". Corrosive primer residue, on the other hand.
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  7. #16
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    CIMG2901.JPGCIMG2902.JPGCIMG2903.JPGCIMG2904.JPG

    Clyde's color on my Browning Brothers 44-40. No lacquer, just oil

    p

  8. #17
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    I much prefer the blue/grey with just some hints of brown shown above to the more garish and gaudy color of the typical Turnbull guns I've seen. YMMV!

    Dave
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  9. #18
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    It matters not to me if the colors are as bright as the rainbow or just a faded, mottled gray. I do like the contrast of the frame with the blued other parts, and especially with handsome grits.

    Bob Wright
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  10. #19
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    Quote Originally Posted by victorio1sw View Post
    True color case hardening is a very complex process, and should be done only by one who regularly performs this task. The heat transfer required leaves colors according to final temperature during quenching. What you call "fire blue" is 600F. Gray-green occurs at slightly higher temps, while purples, browns, and yellow at lower temps. The chart below will give some idea as to temp vs. color. I wouldn't be surprised if altitude has some effect on the resulting colors (Atmos pressure at 10,000 feet is only 10 Psi. At sea level it is 14.7 Psi).

    Temp(F) Oxide Color
    630 Grey Green
    610 Grey Blue
    590 Light Blue
    570 Wedgewood Blue
    550 Dark Blue
    530 Violet
    520 Purple
    500 Red Brown
    480 Yellow Brown
    460 Dark Yellow
    450 Yellow
    430 Straw
    410 Light Yellow
    The case colors result not from the temperature, but from the additives in the firing process. Leather, bone, even cyanide has been used.

    Bob Wright
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  11. #20
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    USFA artillery Repo.



    Turnbull restoration



    1957 Colt SAA
    Last edited by bearcat6; 07-11-2019 at 07:57 PM.
    Real cowboys don't line dance, a Buckaroo won't even watch.


 
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