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casper50
.400 member

Reged: 18/10/07
Posts: 1446
Loc: Alaska

Anyone know what the stud on the muzzle is for?
#195653 - 03/12/11 11:20 PM

Ran across this Belgian .405. What's the stud on the muzzle for?

Edited by CptCurl (05/12/11 02:19 PM)

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Tatume
.400 member

Reged: 09/06/07
Posts: 1091
Loc: Gloucester, Va USA

Re: Anyone know what the stud on the muzzle is for? [Re: casper50]
#195654 - 03/12/11 11:35 PM

It is used to regulate the barrels. The builder will soften the solder and move the wedge, shooting between trials. When the barrels shoot to the desired points of impact most makers will dress it off flush. Why this one was left proud is anybody's guess.

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Take care, Tom
NRA Life Member

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500Nitro
.450 member

Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia

Re: Anyone know what the stud on the muzzle is for? [Re: Tatume]
#195656 - 03/12/11 11:46 PM

Some English guns have it as well (have seen H&H's with it), although not quite as proud as that.

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casper50
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Reged: 18/10/07
Posts: 1446
Loc: Alaska

Re: Anyone know what the stud on the muzzle is for? [Re: 500Nitro]
#195659 - 04/12/11 12:33 AM

Tatume I doubt that they leave the regulating wedge sticking out of the muzzle after the gun is finished. JMO

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500grains
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Reged: 16/02/04
Posts: 4732
Loc: Salt Lake City, Utah USA

Re: Anyone know what the stud on the muzzle is for? [Re: casper50]
#195665 - 04/12/11 01:30 AM

I think I saw a chapuis like that too, although not as large

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Tatume
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Reged: 09/06/07
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Loc: Gloucester, Va USA

Re: Anyone know what the stud on the muzzle is for? [Re: casper50]
#195668 - 04/12/11 01:37 AM

Quote:

Tatume I doubt that they leave the regulating wedge sticking out of the muzzle after the gun is finished. JMO

Well, maybe it's a bayonette stud. :-)

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Take care, Tom
NRA Life Member

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DoubleD
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Reged: 23/11/03
Posts: 2437
Loc: Retired in Oklahoma

Re: Anyone know what the stud on the muzzle is for? [Re: Tatume]
#195669 - 04/12/11 01:44 AM

someone has to say this, might as well be me...it's for the Bayonet.

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DD, Ret.

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Phillip
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Reged: 31/05/10
Posts: 174
Loc: North Carolina

Re: Anyone know what the stud on the muzzle is for? [Re: DoubleD]
#195670 - 04/12/11 01:53 AM

I've been told it is left proud to help protect the muzzles?
Alto, on this one,they must have expected to "regulate" it several times?

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My rule of life prescribed as an absolutely sacred rite smoking cigars and also the drinking of alcohol before, after and if need be during all meals and in the intervals between them.
-Winston Churchill

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kuduae
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Reged: 13/01/10
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Loc: middle of Germany

Re: Anyone know what the stud on the muzzle is for? [Re: Phillip]
#195671 - 04/12/11 02:43 AM

Often European gunmakers leave the regulating wedge protuding, even after finishing a double rifle.
Some Italian double rifles left the factories with unblued barrels "in the white". If the European gunsmith who retails the rifle has to mount a scope on request of his customer, using soldered claw mounts, he very likely has to reregulate the rifle for scope use anyhow. Or if, for instance, the rifle was regulated at the factory for the 9.3x74R classic 18.5g = 286gr bullet load, but the customer wants to use either the 19g = 293gr TUG or the 15g = 232gr Norma Vulkan factory loads, again slight reregulation may be required. Of course, you may also regulate a dr by adjusting handloads, but most European dr users are not handloaders and insist on shooting a certain factory load. And it is a known fact that otherwise perfect dr barrels may lose regulation after many years: Tensions built in originally may "set" over the years and change barrel vibrations and thus regulation. Reregulating is vastly simplified if on resoldering the muzzles the regulating wedge may be gripped and moved. If the wedge was filed flush after the first regulation, you have to remove and it entirely and make and fit a new wedge. So on all the double rifles and dr-drillings I had to reregulate I leave the wedge protuding. As a side effect, a protuding wedge also offers some protection to the muzzles.

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DarylS
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Re: Anyone know what the stud on the muzzle is for? [Re: kuduae]
#195673 - 04/12/11 03:24 AM

I've seen several guns with the muzzle regulation wedge still there and merely assumed it was left for protection of the muzzles. They are thin and prone to damage in hard usage.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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doubleriflejack
.333 member

Reged: 11/11/07
Posts: 352
Loc: Oregon, U.S.A.

Re: Anyone know what the stud on the muzzle is for? [Re: DarylS]
#195681 - 04/12/11 05:42 AM

What Kuduae had to say is 100% accurate. In gunsmithing school, we re-regualted a number of double rifles and drillings, doing essentially what Kuduae explained. Later, personally, in doing the same, especially on several shotgun to double rifle conversions I made,some re-regulating them for scope use, and/or for other cartridge loadings, I did same. As a result, I now prefer to leave wedge a bit long, without trimming it down to barrel muzzles, for possible future re-regulation work, as that makes for a much easier proposition than cutting a new wedge and fitting it.

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mauserand9mm
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Reged: 03/09/09
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Loc: Queensland, Australia

Re: Anyone know what the stud on the muzzle is for? [Re: doubleriflejack]
#195738 - 04/12/11 09:17 PM

That one does appear to stick out a fair way in the photo (but then again the holes are 40 cal).

I store my Merkel double with the barrels down in the safe resting on the wedge and I think this is the extent of protection it provides.

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Pugwash
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Reged: 24/03/07
Posts: 113
Loc: Scotland,UK

Re: Anyone know what the stud on the muzzle is for? [Re: 500Nitro]
#195789 - 05/12/11 09:16 AM

Quote:

Some English guns have it as well (have seen H&H's with it), although not quite as proud as that.

I'd be suprised if you see an H & H with a barrel wedge like that as they use a different system to regulate their rifles,which means the wedge goes in vertically and the barrels protrude past the end of the rib/front sight block.

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500Nitro
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Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia

Re: Anyone know what the stud on the muzzle is for? [Re: Pugwash]
#195790 - 05/12/11 09:41 AM

Quote:

Quote:

Some English guns have it as well (have seen H&H's with it), although not quite as proud as that.

I'd be suprised if you see an H & H with a barrel wedge like that as they use a different system to regulate their rifles,which means the wedge goes in vertically and the barrels protrude past the end of the rib/front sight block.

Not on all guns they don't (barrels protruding past).

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Mike_Bailey
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Reged: 26/02/07
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Loc: GB

Re: Anyone know what the stud on the muzzle is for? [Re: 500Nitro]
#195831 - 05/12/11 08:28 PM

Most of the Belgian double rifles I have seen have the same regulating stud protruding, my Dumoulin .470 O/U was exactly the same, best

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herrdoktor
.275 member

Reged: 03/08/07
Posts: 85
Loc: Spain

Re: Anyone know what the stud on the muzzle is for? [Re: Mike_Bailey]
#195933 - 06/12/11 09:04 PM

I bet it is a Auguste Francotte...

More photos, please...

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casper50
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Reged: 18/10/07
Posts: 1446
Loc: Alaska

Re: Anyone know what the stud on the muzzle is for? [Re: herrdoktor]
#196043 - 07/12/11 09:01 PM

Go here. It's about a 1/4 of the way down.

http://www.micksguns.com/double%20rifles.htm

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DUGABOY1
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Reged: 02/02/03
Posts: 1340
Loc: TEXAS USA

Re: Anyone know what the stud on the muzzle is for? [Re: casper50]
#196235 - 10/12/11 02:58 AM

Quote:

Tatume I doubt that they leave the regulating wedge sticking out of the muzzle after the gun is finished. JMO

Most makers of double rifles leave the wedge exposed so that it is accessable for RE-REGULATING, at some later date. However they are rarely left sticking out that far!

...............................................

--------------------
..........Mac >>>===(x)===>
DUGABOY1, and MacD37 founding member of DRSS www.doublerifleshooterssociety.com
"If I die today, I have had a life well spent, for I've been to see the Elephant, and smelled the smoke of Africa!"

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