Tiffany 1860 Army Blackhawk

Discussion in 'Gunsmithing - Assembly - Finishing' started by Sharps40, Jul 25, 2018.

  1. Sharps40

    Sharps40 Price, it's all about the price

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    I think its going to work. A lotta work but.....we'll see.

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  2. Red Marley

    Red Marley Authorized person Charter Member Supporting Member

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  3. Sharps40

    Sharps40 Price, it's all about the price

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  4. Sharps40

    Sharps40 Price, it's all about the price

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    First step is to drill and tap the grip for the grip cap screw and then to machine the recess in the grip cap for an 8x40 screw.

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  5. NCLivingBrit

    NCLivingBrit Clueless Protoplasm

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    Every time you post something, I hunger a little more :)
     
  6. Sharps40

    Sharps40 Price, it's all about the price

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  7. NCLivingBrit

    NCLivingBrit Clueless Protoplasm

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    And if I ever find any sort of money you are gonna have to build me something.
     
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  8. Sharps40

    Sharps40 Price, it's all about the price

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    Next step is to loose a bunch of unnecessary barrel length that makes these guns cumbersome to carry, here trimmed to a true 4" length. Added is a NOS Steel cam cut ejector rod housing from the old true 4" army san-marco revolvers and a colt style crescent ejector rod button.

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  9. Sharps40

    Sharps40 Price, it's all about the price

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    Then comes a front sight. 1/16" brass bead for fine shooting.

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  10. Sharps40

    Sharps40 Price, it's all about the price

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    The part was inexpensive because the upper left screw hole was drilled twice. Crooked once and then oversize and crooked again leaving a figure 8 hole. Drilled it out on the press with the smallest bit that would clean up most of the hole, fitted a brass pin and tinned and soldered with Hi Force 44 silver solder. Strong enough. Incidentally, I found water base flux and a low flame works best with Hi Force. Much better and easier to solder the strongest joints with good old water base plumbers pipe flux. Later, I'll measure, mark and drill and countersink a new hole for the upper left grip screw.

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    Last edited: Oct 7, 2018
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  11. Sharps40

    Sharps40 Price, it's all about the price

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    First fitting going well. New left upper grip hole drilled and countersunk at .619" CTC. Pretty close bolt up of Italian grip to American frame. I'm pleased, only minor fitting at the aft end of the frame and the width is at least a good as a Ruger factory grip frame.

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  12. Sharps40

    Sharps40 Price, it's all about the price

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    Factory blue on this one is so good I'm moving slow as I'd like to preserve the blue throughout the fitting process. First fit of the Uberti brass trigger guard to the frame and grip. Will have to get the trigger guard exactly where i want it and then bring the grip evenly into the strap and back of the ruger frame. Just try and try again till it slides right into place.

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  13. Sharps40

    Sharps40 Price, it's all about the price

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    Getting back to sparkly goodness. Here the lower tang has been heated dull red in a dark room and bent forward 3/16" to line up with the curvature of the cast grip. Front screw hole in the trigger guard is plugged with brass and moved back 2/3 hole to line up with the factory hole in the frame. Counter bored, a ruger back strap screw is a perfect fit for a new front trigger guard screw. Also, the two rear trigger guard screws were replaced with back strap screws for a perfect clamp on the Uberti trigger guard. Finally, the grip is drilled and counter bored under its eagle cap in order to fit a screw which secures the tail of the trigger guard to the grip itself. Rock solid. Started some of the grinding of casting flash. Next step is to outfit the trigger guard to function with the old model trigger return spring and plunger.

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  14. Sharps40

    Sharps40 Price, it's all about the price

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    Next step is making up a simple jig to copy the Ruger Trigger Plunger hole over to the Uberti Brass Trigger guard. The hole is .170 diameter and .650 deep. When looking at the bottom of the trigger guard, the hole is 10 degrees to one side and 15 degrees down from the frame base line as measured from the proper sized drill bit, these angles repeat pretty well on several surfaces of both trigger guards. (important as they are slightly different shapes and its good to have common reference points to align the brass guard to be drilled). I used the original XR3RED grip frame to establish the angles. When mounted on the leveled drill press pad, the drill bit will be perfectly vertical. After some additional work on the grip frames trigger slot, I'll be ready to step drill the trigger plunger hole in stages on the drill press. Every Italian part is slightly different throughout the years, so each modification may require a new jig, easy enough from scrap wood and a few minutes work to establish the angles.

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  15. Pbj ak

    Pbj ak B Supporting Member

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    Just wanted to say that is awesome work.
     
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  16. Sharps40

    Sharps40 Price, it's all about the price

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    Its a tuff one!
     
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  17. Sharps40

    Sharps40 Price, it's all about the price

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    Drill out the hole for the trigger plunger, polish the hole and the plunger and check fit. Drill all the way out the back, the trigger guard is thinner than the aluminum factory housing and a capture pin/screw will be installed to retain the spring from the backside. Some more fitting of the trigger, it rubs on one side of the slot and is a bit long, rubbing the edge of the trigger on the inside of the guard.

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  18. Sharps40

    Sharps40 Price, it's all about the price

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    In and out hunting but between trips, got the inside of the trigger tail profiled for conversion from flat spring to coil and since there is a dearth of space inside the brass grip, trying and upside down spring seat. I think it'll fit and have all the needed clearances for the mainspring and strut.

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  19. Combat Diver

    Combat Diver Well-Known Member

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    You had me with the title. I was thinking Colt never called any gun Blackhawk. Outstanding work so far!

    CD
     
  20. Sharps40

    Sharps40 Price, it's all about the price

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    Thanks. This one is a bit of new ground. Slow going.
     
  21. cold1

    cold1 Member

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    Mines slower
     
  22. Sharps40

    Sharps40 Price, it's all about the price

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    Will have enough room for the mainspring and strut to run unencumbered inside the grip in place of the Colt original flat spring. Also, the trigger return plunger functions correctly and all the clearances needed for the trigger were made within the trigger guard loop. So, no need to re-blue a shortened trigger. Finally, a stud retains the trigger plunger spring at the rear.

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  23. Sharps40

    Sharps40 Price, it's all about the price

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    Keep on Chooglin!

     
  24. Sharps40

    Sharps40 Price, it's all about the price

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    Finish is in sight.....all the parts are working with each other. Everything fits. So now its all just in the final fitting, adjustments and spit and polish.

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  25. BatteryOaksBilly

    BatteryOaksBilly A SHOOTER Benefactor Life Member Supporting Member

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    WoW!! I have a Colt Bisley in a full King conversion that is begging for your help!?
     
  26. Sharps40

    Sharps40 Price, it's all about the price

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    long slow work now...final fitting. Getting the trigger guard done first, blending in difficult spots. Alternately polish and file/sand, then polish again. Helps to take photos as you go....easier to see the flaws on a big picture and then go back to the work at hand.

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  27. Sharps40

    Sharps40 Price, it's all about the price

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    Roughing in the shape around the top and bottom of the grip and trigger guard to frame.

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  28. Sharps40

    Sharps40 Price, it's all about the price

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    Just about done. Fitted all the action screws to length, polished the brass with a loose muslin wheel and white stainless polishing compound then blackened the background on the grip with Birchwood Casey Super Blue. Took it out for some shooting and everything is fine. Last bits will be a disassembly for checks and full cleaning and then back together for the last time. Fun project. Sorry, the sun washed out the photos a bit. I'll try to take some more on a cloudy day, the now crisp detail of the grip is lost somewhat in the glare.

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    Last edited: Dec 25, 2018
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  29. Sharps40

    Sharps40 Price, it's all about the price

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    So.....Red Marley, still wondering?
     
  30. Red Marley

    Red Marley Authorized person Charter Member Supporting Member

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    Well, not exactly my cuppa, but it's growing on me. Outstanding piece of work.
     
  31. Sharps40

    Sharps40 Price, it's all about the price

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    Well cool. Im glad ya feel it cause the work is the love.
     
  32. Burt Gummer

    Burt Gummer Comfortably Numb Staff Member Benefactor Charter Life Member

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    Amazing work. One of the coolest projects I’ve watched from start to finish
     
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