oil bluing

Discussion in 'Gunsmithing Forum' started by unclebear, Feb 17, 2012.

  1. unclebear

    unclebear New Member

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    Does anyone have an experience with this, pro's con's? I'm wanting to do a mosin bolt with this process but I'm planning on running a dozen test pieces first. It's just seems like the easier and simpliest method for bluing. :confused:
     
  2. danf_fl

    danf_fl Retired Supporter

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    Getting the piece to the correct temperature evenly is important.
    Not the word "evenly". Some areas of a bolt are thicker than other areas and will require a little more to heat up and by the time they do, the thinner areas are too hot.

    If heated unevenly, the oil will not have the same color in different areas.

    Try a metal rod, like rebar, first.
     

  3. unclebear

    unclebear New Member

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    I would like the colors to look "even" but really the thing that stops me from taking my Mosin camping with me is the steel bolt I don't want it to rust. I found this Brownells Oxpo Blue but right now I don't have the money to put torwards it, but I do have a few things of oil and a nice blow torch, I've got a bunch of scrape and a few different cheap knives I want to try it out before I get to into it just to run a few test with it.
     
  4. hiwall

    hiwall Well-Known Member

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    I've done this hundreds of times with small parts but never with a large piece(like a bolt). Aren't you afraid of ruining the temper of the bolt?
     
  5. trip286

    trip286 New Member

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    Uncle bear, I've taken my mosin hunting in the rain. If your rifle is clean and already well lubed, you shouldn't have any problem.
     
  6. purehavoc

    purehavoc New Member

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    Im going to say slather the bolt with a light coat of mobil 1 synthetic and it should be fine even if it gets wet
    I have done a few large pieces with the hot oil rub dunk / dunk and they never come out the same color , I think a guy would need a forge to get the temp regulated the same all the way thru the bolt to get the came color when oil dunked
     
    Last edited: Feb 17, 2012
  7. unclebear

    unclebear New Member

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    usually when I go camping it's for a few day and I forget my gun cleaning supplies a lot... I'm not really worried about ruining the bolt I have my original mosin then I have this one I'm keeping my first original this one is modded alot. I might just wait till I get my tax's back and throw down some money on the brownells bluing solution any thought about that (the chemical)
     
  8. danf_fl

    danf_fl Retired Supporter

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    Bluing is a form of oxididation (like rust is an oxide).

    Keep a can of WD-40 (Water Displacement formula, 40th attempt). It should protect enough until you get home (and there is always the engine oil from the transportation you used).
     
  9. srtolly1

    srtolly1 New Member

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    I might be a bit late with this bit here is my 2bits. I have a Mosin Nagant as well, I used Oxpho blue on my bolt. I only use oil bluing for small parts as they are easier to heat evenly. The cold blue is easy to touch up as needed too. My other MN I just keep well oiled and have no issues.