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Thread: Rust bluing... A really cool process.

  1. #1
    Boolit Master
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    Jul 2020
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    Johnson City, Tn.
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    Rust bluing... A really cool process.

    So a few weeks back, I picked up a Traditions .50 caliber flintlock rifle kit. The black powder guys at the range are infectious with the sparks, flash, bang and smoke.

    Anyways. The kit came with a run of the mill beech stock which was acceptable for the price of the kit. I had to sand down the wood and some of the brass to get a smooth transition between the mating surfaces. Buffing out the brass was simple enough to do as well.

    What was not quite so simple was figuring out what to do with the "white" barrel, i.e. a steel barrel with no finish. Traditional treatments are.
    Leave the barrel "white" and let it rust naturally.
    Treat the barrel with a rusting compound. This leaves it a dark brown color that accepts oil and prevents more rusting.
    Blue the barrel.

    I didn't like the option of rusting the barrel, so I went with rust bluing. With rust bluing process, you basically rust the metal, boil it for about 20 minutes and then use 0000 steel wool to knock off the black coating. The process takes Fe2O3 (rust) and converts it to Fe3O4 (magnetite).
    So, I used a rusting solution, coated the barrel and put it in a hot shower for a few hours.
    When it was nice and orange looking, I put it in a gutter on the stove full of boiling water.
    I then lightly hit it with 0000 steel wool and cleaned it very well before repeating the process.

    After 4 times, I ended up having a black beautiful looking barrel.
    I will post pics later.
    “Coincidence is God’s way of remaining anonymous.”

  2. #2
    Boolit Master

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    looking forward to seeing the results.

  3. #3
    Boolit Master slim1836's Avatar
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    I'd like to see the comments your wife made when you were using her stove.

    Slim
    JUST GOTTA LOVE THIS JOINT.

  4. #4
    Boolit Grand Master

    gwpercle's Avatar
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    Smile

    To me , rust bluing is sort of a amazing magical transformation ... going from red rust to a beautiful blue finish . Simple to do but labor intensive as all get out .
    Post some photo's of your project .

    What comments did the wife have when she wanted to take a shower
    Gary
    Certified Cajun
    Proud Member of The Basket of Deplorables
    " Let's Go Brandon !"

  5. #5
    Boolit Master
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    Yeah, 4' gutter on the stove... My wife is a trooper when I do things like this.
    The shower was no big deal either.

    Here is the "white barrel" when I received the kit.
    Click image for larger version. 

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    This was after 4 processes.
    Click image for larger version. 

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    The picture does not do it justice. I sanded it all down with 600 grit before processing and then cleaned the heck out of it.
    “Coincidence is God’s way of remaining anonymous.”

  6. #6
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    Chill Wills's Avatar
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    Way to go!
    I like to do slow rust blue too. In fact, I look for projects to keep up on it.
    Chill Wills

  7. #7
    Boolit Master Randy Bohannon's Avatar
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    Now Johnson paste wax the crap out of it and it will pop and be color stable .

  8. #8
    Moderator


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    Nice job, Mr. Baker. If you do more rust bluing look into a humidity cabinet. Easy to make project.

    DG

  9. #9
    Moderator Emeritus / Trusted loob groove dealer

    waksupi's Avatar
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    For future reference, no need to sand past 320 grit.
    The solid soft lead bullet is undoubtably the best and most satisfactory expanding bullet that has ever been designed. It invariably mushrooms perfectly, and never breaks up. With the metal base that is essential for velocities of 2000 f.s. and upwards to protect the naked base, these metal-based soft lead bullets are splendid.
    John Taylor - "African Rifles and Cartridges"

    Forget everything you know about loading jacketed bullets. This is a whole new ball game!


  10. #10
    Boolit Master


    David2011's Avatar
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    Beautiful job. Congratulations!
    Sometimes life taps you on the shoulder and reminds you it's a one way street. Jim Morris

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check