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Thread: Gemmer Trapdoor .45-70

  1. #1
    Boolit Buddy
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    Gemmer Trapdoor .45-70

    100 yard group. I'm sure the rifle can do better but 68 year old eyes and bifocals don't help.
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  2. #2
    Boolit Grand Master



    M-Tecs's Avatar
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    Very nice. I have all the parts (except for Gemmer style hammer) for one. I just need to get to finishing mine.
    2nd Amendment of the U.S. Constitution. - "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

  3. #3
    Boolit Grand Master

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    Very nice, rifle looks like a real craftsman did the conversion.

  4. #4
    Boolit Master
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    MORE PICTURES MY MAN!!! that is a very nice lookin rifle from what I see. Did you do the work? How long is the barrel? Much more info is needed ... come now ... no teasing
    WHEN ALL IS SAID AND DONE...MORE WILL BE SAID THEN DONE

  5. #5
    Boolit Master
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    Yes, more pictures and info please. I am in the process of building one myself in 40-50 SBN caliber. I am using an octagon 40 caliber barrel and a Hawken style lock, along with a stock made from a home-grown walnut plank harvested in our yard. For me, it has been a long and often frustrating process as there were no plans, just pictures. I have built a few muzzloading guns, but that was when I was a lot younger and didn't have arthritic hands. My frustration level isn't as high either. And a Hawken is a hard gun to get right. Marrying the lock to the receiver (and set triggers!) was a chore. I am about there though, need to modify and tweak the hammer to strike the firing pin.
    Last edited by mazo kid; 03-18-2019 at 02:17 PM.
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  6. #6
    Boolit Master
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    Oh, forgot to compliment Varsity on the great looking rifle! Very nice work.
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  7. #7
    Boolit Buddy
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    I'll put up some more pics shortly. The barrel is a tapered Green Mountain 28 1/2" plus the length of the receiver. The rifle was rough assembled in the white by Doc White, from Green River Rifle Works, back in the day. I did the remaining shaping of the stock and the stain and finish. I had the breech block case colored by an outfit whose name escapes me. The iron hardware is rust blued. After I shot it a few times, I added the MVA tang sight. The barrel needed at least 50 rounds to break in while I experimented with different loads.
    Last edited by varsity07840; 03-19-2019 at 08:35 AM.

  8. #8
    Boolit Master
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    That is awesome. This has always been a project I wanted to do. Very nice work and looks like she shoots nicely as well.

    Cant wait to see your pictures.
    WHEN ALL IS SAID AND DONE...MORE WILL BE SAID THEN DONE

  9. #9
    Boolit Bub
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    I remember reading somewhere that there is only one known octagon barrelled Gemmer trapdoor and that all the rest were standard round barrelled trapdoors.

  10. #10
    Boolit Buddy MaLar's Avatar
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    Quote Originally Posted by bigted View Post
    MORE PICTURES MY MAN!!! that is a very nice lookin rifle from what I see. Did you do the work? How long is the barrel? Much more info is needed ... come now ... no teasing
    Agreed!
    Do not confuse my being polite for weakness.
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  11. #11
    Boolit Master
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    Gemmer

    Quote Originally Posted by Deadeye Bly View Post
    I remember reading somewhere that there is only one known octagon barrelled Gemmer trapdoor and that all the rest were standard round barrelled trapdoors.
    You are probably right; but I have seen pictures of repros with octagon barrels. The reason I used one is that I wanted a smaller caliber rifle and that is the barrel I already had.
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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