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Thread: Breech Bolt Replacement for Webley Vulcan and Hawk

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  1. #1
    Hsing-ee's Avatar
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    [QUOTE=PCPShooter;7417148]
    Quote Originally Posted by Hsing-ee View Post
    Does anyone know of a swap for the breech pin on these rifles? Something with a nut on the other end. Anything from Weihrauch or Haenel or Diana?[/QUOT


    If you do that it' ll pull the jaws apart as the axis point in not central on those models -
    I don't understand. How can it pull the jaws apart when the force of the fastener is squeezing them together? Wedgie claims to have done the conversion with an HW bolt, and it was a common tweak on the Vulcan Mk 2 and 3 to stop the dreaded 'wobbly webley' syndrome.

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    Unless you are using a long bolt with the head sticking out on one side and the nut on the other, then it makes more sense to me to use the bolt off an xocet or omega https://www.gunspares.co.uk/products/24558/Xocet/ B1286 part number and get a threaded top hat insert made/ fitted for the right hand jaw and the left one recessed. At least then you are only messing with the jaws and not having to mess with the breech block? If you dont mind bits sticking out, then a 1/4 inch diameter shanked bolt and nut would do--------but you would have to take a scoop out of the stock for where they stick out.
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    Quote Originally Posted by ggggr View Post
    Unless you are using a long bolt with the head sticking out on one side and the nut on the other, then it makes more sense to me to use the bolt off an xocet or omega https://www.gunspares.co.uk/products/24558/Xocet/ B1286 part number and get a threaded top hat insert made/ fitted for the right hand jaw and the left one recessed. At least then you are only messing with the jaws and not having to mess with the breech block? If you dont mind bits sticking out, then a 1/4 inch diameter shanked bolt and nut would do--------but you would have to take a scoop out of the stock for where they stick out.
    Just found a bolt/nut from a BSA Mercury-S which might work, either with a collared nut or by countersinking the breech jaws a bit. It is a loose fit in a HW35 breech block, so the HW bolts must be 7mm not 6.35 mm, and would need the breech block to be drilled....

    The BSA bolt is too short so I've ordered a shouldered bolt off the evil bae...
    Last edited by Hsing-ee; 20-01-2018 at 01:12 AM.

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    Quote Originally Posted by Hsing-ee View Post
    Just found a bolt/nut from a BSA Mercury-S which might work, either with a collared nut or by countersinking the breech jaws a bit. It is a loose fit in a HW35 breech block, so the HW bolts must be 7mm not 6.35 mm, and would need the breech block to be drilled....

    The BSA bolt is too short so I've ordered a shouldered bolt off the evil bae...
    Bowket used to include a bolt in his 12 ft/lbs Meteor conversions (£23.50 in the early 1980s) and also offer them fro Wobleys. He copied the HW system by threading one jaw and boring out the other. The bolt he made had a 7mm shank and the breech block/barrel bored out to suit. The HW system with locking screw or nut is the way to go. An unlocked bolt can turn around in use giving a cam effect which alters zero. I know this to be factual as I used one for many a year. Wish I still had it.

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    Hsing-ee's Avatar
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    Quote Originally Posted by greenwayjames View Post
    The HW system with locking screw or nut is the way to go. An unlocked bolt can turn around in use giving a cam effect which alters zero.
    Blimey this is getting complicated. Maybe it would be better to just squeeze the breech jaws in a vice every so often!

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    Quote Originally Posted by Hsing-ee View Post
    Blimey this is getting complicated. Maybe it would be better to just squeeze the breech jaws in a vice every so often!
    Or use shims
    Bolts don’t work on non central axis pivots
    IMO a rifle with that conversion becomes valued at worth of other spare parts only-
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    Quote Originally Posted by PCPShooter View Post
    Or use shims
    Bolts don’t work on non central axis pivots
    IMO a rifle with that conversion becomes valued at worth of other spare parts only-
    It's a Hawk Mk 3 so its only worth a couple of Kit-Kats anyway.

    I still don't understand why a non-central axis pivot cannot be fitted with bolt, can you explain?

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