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Thread: Cunning '77 Modification

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  1. #1
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    Quote Originally Posted by Black Beard View Post
    Just an idea but it might work.
    One of the annoying things about the '77, '97, TX and LGU is the fiddly loading. So why not put a pop-up loading guide that lifts when the cocking lever is fully back and is pushed out of the way by a spring when the lever goes forward. The '57 has a pop up breech that shows you can have a lift up mechanism powered by the lever. It would also be a useful anti-beartrap device as the piston couldn't go forwards while the loading guide was in place. Alternatively, you could just make it spring powered so the shooter has to push it down to close the lever and move the piston forwards (like the anti-beartrap on a Dianna)

    BB
    good idea

  2. #2
    flyingfish's Avatar
    flyingfish is offline I may only have 5 but I have the best 5
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    How would it get past the cylinder. An elderly gentleman at my club has made a tool for loading his 77. A sort of lolly stick with a piece of rubber to hold the pellet in place

    Pete
    Pete

  3. #3
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    Quote Originally Posted by flyingfish View Post
    How would it get past the cylinder. An elderly gentleman at my club has made a tool for loading his 77. A sort of lolly stick with a piece of rubber to hold the pellet in place

    Pete
    It drops out of the way before the cylinder is closed. This would need a hole in the bottom of the action for it to go through.

  4. #4
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    The Diana slide breech rifles have a tapered breech makes for easier pellet loading.

    I don't know why the other manufacturers haven't adopted this design.

    The AA Prosport is unique in that it has a cut out at the bottom of the cylinder and a hidden interceptor anti bear trap device.

    I still like the Theoben enclosed slide breech, swing out single shot tray with a loading probe seating the pellet within the breech.

    The BSA rotating breech RB2 was a very good mass production idea as an alternative to slide breech, albeit the transfer port being quite long as a result.

  5. #5
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    alignment would be the critical bit

    I'm not even a fan of probes nd channels for loading pellets

  6. #6
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    Quote Originally Posted by martin75 View Post
    The Diana slide breech rifles have a tapered breech makes for easier pellet loading.

    I don't know why the other manufacturers haven't adopted this design.

    The AA Prosport is unique in that it has a cut out at the bottom of the cylinder and a hidden interceptor anti bear trap device.

    I still like the Theoben enclosed slide breech, swing out single shot tray with a loading probe seating the pellet within the breech.

    The BSA rotating breech RB2 was a very good mass production idea as an alternative to slide breech, albeit the transfer port being quite long as a result.
    Always liked the RB2/Superstar design. BSA could have executed it a bit better though.

  7. #7
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    I think the "mod" - well, built in design - would look and work similarly to how a semi auto shotgun feeds cartridges. The only issue I see is that for a properly designed loading guide you need some space below, where the cocking link normally resides, and the cutout size may also weaken the external cylinder if too generous.
    **WANTED**: WEBLEY PATRIOT MUZZLE END; Any Diana/Original mod.50 parts, especially OPEN SIGHTS

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