Fixing my Medusa?

Discussion in 'Gunsmithing Forum' started by Trez, Nov 18, 2012.

  1. Trez

    Trez Well-Known Member

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    I think I broke my Medusa... I bought a box of 9mm at a yard sale, and they were super hot (The primer fused with the head of the case after shooting!! :eek: )
    It still shoots rimmed cartridges fine, but the firing pin isnt hitting the rimless rounds hard enough... It looks like there a "dent" in my hammer, like the firing pin slammed back into the hammer.

    Since my 'Dusa is far from a museum piece, Im thinking of spiffin' it up..

    Most of the internals (including the hammer) are the same as a S&W K frame, so I think I can get a new one.. Can I get a new case hardened one, or maybe a titanium one? Would a certain material or style be better? (If available??)

    What is this Duracoating ive been hearing about? Would it resist the wear that happens on the cylinder? Other finishes? Some snake-skin grips like Cane? ;)
     
  2. hiwall

    hiwall Well-Known Member

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    S&W K frame hammers have the firing pin on the hammer. How do you dent that hammer?
     

  3. Trez

    Trez Well-Known Member

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    Ok, I guess its not a K frame hammer, but I read that it is the same hammer used in one of the S&W Revolvers

    Heres some pics..
     

    Attached Files:

  4. JonM

    JonM Moderator

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    holy crap!! thats definately loaded too hot!! thats classic primer flow WITH pierced primer. your lucky it didnt outright kaboom. you should get a magnafying glass and inspect frame and cylinder for micro-cracks

    pull the bullets toss the powder reaload with a inspec loading.

    dunno know anything about spare parts.
     
  5. hiwall

    hiwall Well-Known Member

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    Tell you what, as a fellow resident of Arizona, I will give you $100 for it. Even though it is now only worth scrap price:D
     
  6. Trez

    Trez Well-Known Member

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    So I guess Im on my own? :(
     
  7. kytowboater

    kytowboater Active Member

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    I wish I knew about them man. I hope you get the dusa running again.
     
  8. hiwall

    hiwall Well-Known Member

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    Trez, if it shoots rimmed cases OK yet, then it seems to me that your firing pin protrusion is still OK. That would leave the special extractors that that particular gun has to hold the rimless ammo. Time for you to thoroughly inspect them. During that inspection insert cases(can be empties) and press on them to see if they are still being held firmly in the correct position. This is only guesses as I have never worked on or even held one of these guns.
     
  9. Trez

    Trez Well-Known Member

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    I checked it out, the cylinder fingers are fine, still holding the rounds firmly. I am pretty sure its the Hammer and/or hammer spring... It fires the .38/.357's but the primer strike is a lot lighter than it used to be, and the dent in my hammer is pretty deep... I tried to increase the tension on the hammer spring but it made no difference.

    Where can I get S&W hammers? I found a couple at Midway, but they just have a target and standard version. Do they make "fancy" hammers for S&W revolvers like they do for 1911s? I think something like a titanium skeleton one would look neat...

    Heres one I found: http://www.midwayusa.com/product/892765/smith-and-wesson-target-hammer-assembly-s-and-w-17-18-617-648-500-blue

    For S&W models 17, 18, 617, 648 .500 Blued... What does the measurement mean? I seen a couple of different ones? :confused:

    Another question.. Whats the difference between a target and a standard hammer?
     
    Last edited: Nov 27, 2012
  10. trip286

    trip286 New Member

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    The spur....
     
  11. Trez

    Trez Well-Known Member

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    Can you elaborate?
     
  12. trip286

    trip286 New Member

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    The standard spur is taller and offers a bigger surface area for your thumb to grip. The target spur is smaller, a little more out of the way, less distracting.

    I may have those backwards. It's one or the other.
     
  13. hiwall

    hiwall Well-Known Member

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    Yes you had it backwards Trip! The target hammer is more than twice as wide as the standard.
     
  14. trip286

    trip286 New Member

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    Well, at least I knew what the difference was...:eek:
     
  15. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

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    Your hammer is very different from a standard S&W hammer of that period. Yours has a frame mounted firing pin and flat faced hammer. I would look at the firing pin. It may have been peened shorter by the force. Check the protrusion unless it is a rebound type.
     
  16. dsstrpc_88

    dsstrpc_88 New Member

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    Know anyone who can tig weld?
     
  17. Trez

    Trez Well-Known Member

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    It looks just like the one in the link I posted?? :confused:

    What S&W revolvers have the flat faced hammer and frame mounted pin?
     
  18. Trez

    Trez Well-Known Member

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    Found a firing pin.. It says it was used in J, K, L, N Frames??
    http://www.brownells.com/handgun-parts/slide-firing-parts/firing-pin-parts/firing-pins/s-w-revolver-extra-length-firing-pin-prod5483.aspx?avs|Make_3=Smith%20&%20Wesson#.ULZdBoY2QiE

    SMITH & WESSON - HAMMER, .500" TARGET, MIM, FOR FRAME MOUNTED FIRING PIN Model: K Frame
    http://www.brownells.com/handgun-parts/trigger-group-parts/hammers/hammer-500-target-mim-for-frame-mounted-firing-pin-prod15013.aspx?avs|Make_3=Smith%20&%20Wesson#.ULZgRoY2QiE

    I seem to be able to find frame mounted firing pin parts for K series S&W... Why does everybody keep correcting me the K-frame has a hammer mounted pin??? :confused:
     
    Last edited: Nov 28, 2012
  19. Trez

    Trez Well-Known Member

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    Im seeing a lot of the S&W hammers marked "MIM". What does that mean?
     
  20. hiwall

    hiwall Well-Known Member

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    "Im seeing a lot of the S&W hammers marked "MIM". What does that mean? "

    Made in Mexico
    Might injure minors
    Many in Mississippi