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Thread: Mk IV 22 Webley and a Mk VI Sub Caliber 22 Adapter

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    Member BruceHMX's Avatar
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    Mk IV 22 Webley and a Mk VI Sub Caliber 22 Adapter

    I found these over the last few weeks as my interest in 22 Webley's grew. I had sold a Mk IV several years ago and was lucky to find this one. It's a strong 98% gun that appeared unfired. B serial range but the odd thing is the trigger. It's polished rather than blue and does not have serrations like the previous Mk IV I owned. That one was in the A serial range so perhaps Webley changed it up?

    Next was the Mk VI sub caliber device. Really neat and slipped right into a 1923 Enfield 455. Very accurate and ejects the shells perfect. It will chamber and fire a 22LR even though it is marked 22L.

    Aguila Super Colibri's for back yard plinking at a small range I have set up.

    Question for the forum is what are the best reference materials for these two items? Are Webley records still available to find out the information on the Mk IV?


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    Quote Originally Posted by BruceHMX View Post
    It will chamber and fire a 22LR even though it is marked 22L.
    Could have been touched with a reamer decades back too, you'll never be able to tell...the casing is the same length so it's just the forcing cone that could be long and accept an LR round. Nice pistols...
    Regards, Jim

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    As I remember the Mk6 sub cal adaptor, the barrel went in from the breech end and was secured with a brass nut which I can't see on that one plus a few other differences too..........

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    The one you refer to Peter is the 6 six shot one I think.

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    Quote Originally Posted by Peter Laidlericon View Post
    the Mk6 sub cal adaptor, the barrel went in from the breech end
    Those were almost artwork...a gentleman's rat pistol.
    Regards, Jim

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    Yes this adapter is the single shot without brass nut it just slides in from the breech as well. Very accurate as I was able to bounce a soup can around the back yard yesterday over 25 meters. Same with the Mk IV but they are pretty much like a K-22 S&W. I just moved into a new home in December. The old place was on 10 acres and I had a range right off my deck. Lord how I miss that place. So for now until I can get to other property/ranges the back yard stuff will do.

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    I suspect the unit was made to fit a 4 inch barrel. The threaded portion is hidden in the MkVI 6 inch barrel. If you shoot it, be prepared it will shoot very high. I have a hole in my basement wall to verify that.

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    For the life of me I just can't see what on earth anyone would design a single shot adaptor for a 6 shot revolver when there was already a 6 shot adaptor available. What would the advantage be? It'd certainly save on ammo because while you'd shoot 6 shots in fairly quick succession during a practice the hassle of reloading after each single shot wopuld be, what I'd diplomatically describe as '....rather wearisome......

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    The adapter is indeed for a 6 inch Mk VI. The end of the insert goes all the way to the end of the muzzle. In Robert Maze's book it describes the tube being developed in the early twenties due to 455 ammunition shortages. Although it helped with learning the sighting techniques the shooter was not able to go through the qualification course. Then Parker Hale developed the 6 shot cylinder and barrel which has the brass nut on the end. Guess I need to be on the hunt for one of those. In shooting the Enfield with the single shot tube it's kind of like a miniature Martini. LOL


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