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Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing

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Metalguy
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Reged: 25/10/09
Posts: 152
Loc: Northern WY
Re: Re-hooking a set of Barrels [Re: Birdhunter50]
      #147497 - 09/12/09 11:22 AM

Thanks for the thoughts. I didn't realize the greener crossbolt was a "political" issue with some people. Anyhow, I haven't even torn into my gun yet as I haven't fully decided on a caliber yet. I'll be crankin on it by the end of the month though. I just thought this re-hooking would be a good topic to discuss.

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BlainSmipy
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Re: Re-hooking a set of Barrels [Re: Metalguy]
      #147506 - 09/12/09 04:21 PM

Cross bolts actually transfer some of the stress to the breech, much like a dolls head, as well as positively locking the action.

--------------------
You horde gold, I horde lead.


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450_366
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Re: Re-hooking a set of Barrels [Re: 500Nitro]
      #147508 - 09/12/09 05:48 PM

Have any of you guys tryed to soth the hole for the crossbolt and see if it touches the bolt at the moment of fire?

Even a shotgun will flex a bit in the action when fired, a DR will open up even more. In larger calibers it can open enough to affect regulation, this is if no other third lock is aplied offcourse.

And the usuall way to get a gun off face is to open and close it, not to shoot it, and the crossbolt doesent help there does it? Not mention carrying it over the back broken.

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"


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500Nitro
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Re: Re-hooking a set of Barrels [Re: 450_366]
      #147509 - 09/12/09 06:20 PM



450

Holland Double Rifles don't have much of a third bite, if any.


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450_366
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Re: Re-hooking a set of Barrels [Re: 500Nitro]
      #147511 - 09/12/09 06:50 PM

Quote:



450

Holland Double Rifles don't have much of a third bite, if any.




I didnt say you need one, but you say they dont make a difference, a think they do.

But there are a lot of crappy guns with crossbolts, so there will be bad examples.

On a modern steel action there hardly are a need for anny third bite if made in a rimmed cartridge but still the complex jaeger is made to secure the action a bit further.
My point is there is allways a need to get the buyer so stronger apperence will probably sell more guns, funny thing is that one seldom sees it in o/u guns.

Also if you dont think its of use take a h&h and remove the underlugs and i will do the same thing with one of my loose fitting crossbolt guns and then will pop of a couple of rounds each.

Btw. chapius only uses one bite in there smaller frames, and it seems to work fine, are they better then the h&h then.

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"


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500Nitro
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Re: Re-hooking a set of Barrels [Re: 450_366]
      #147512 - 09/12/09 07:01 PM



450

IMHO, the Greener Cross Bolt doesn't make a difference
but you are right, there are alot of crappy cross
bolted guns out there.

I do think Third bites are important - which is why I like Webley's etc and that type of lock up system.


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450_366
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Re: Re-hooking a set of Barrels [Re: 500Nitro]
      #147513 - 09/12/09 07:28 PM

Probably all of the third type locks are as good as anyone if they are of the type that restrict vertikal and horizontal movement at the same time, but if not fitted properly they are as bad as any one of them.

But on the matter bringing it on face again the dolls type are a bit worse then the crossbolt, what i mean is that when the breech is brought closer to the action you loose the horizontal fit. On the crossbolt its possible ti fit a larger bolt, but then again noone does.

Also if the breech is brought back agains the action you loose the fit on the front part on the lugs of the lump and the bolt has to take the whole blow.

If there is a possibility to sleave the barrels as mention in this thread and fit the sleaves to the action it would solve a lot of trouble, that is if the sleaves at least are as big as the rim.

And for the record, i love the crossbolt, greener or kersten, they are simple and as strong as any of the other.

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"


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500Nitro
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Re: Re-hooking a set of Barrels [Re: 450_366]
      #147514 - 09/12/09 07:36 PM


Isn't the Kersten set up slightly different to the Greener ?

The Webley Screw Grip almost keep the gun tight by the way it locks up.


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450_366
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Re: Re-hooking a set of Barrels [Re: 500Nitro]
      #147517 - 09/12/09 10:48 PM

Not by much in the aspect of locking, the hole isnt round and its sometimes on bouth sides but it performes in the same manner as the greener.

The screw grip surely is a excellent system but its much worse to fit i recon, so in a high cost arm why not, in all the others there will be corners cut. A dollshead with an angled grip would be the same thing, accept for the larger bearing surface on the screw grip on the vertical lockup.

But the same thing is with the screw grip, if its off face there will always be a horizontal gap left if put back on face, the only way would be to bush the action at the hole for the extended rib.

This makes me want to comment the types of action with a vertical pin lockup as the bissel and the german one in this thread http://forums.nitroexpress.com/showflat....;gonew=1#UNREAD

Yeas they are excellent third fasteners visually, but as an lockup the will lack in comparision with a common third fastener.

Does this mean the are vorse, hell no, but they are not as strong as crossbolt for instance, would i want one, hell yeah.

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"


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Metalguy
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Reged: 25/10/09
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Re: Re-hooking a set of Barrels [Re: 450_366]
      #147521 - 10/12/09 12:55 AM

So in your opinion, if you were me, would you even mess around with re-hooking the the barrels? You really do have to look hard to see the daylight through the side of the action. There is absolutely no movement at all with any parts. Like I said before though this is my first build. I don't want it to blow in my face!!

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450_366
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Re: Re-hooking a set of Barrels [Re: Metalguy]
      #147522 - 10/12/09 01:24 AM

Quote:

So in your opinion, if you were me, would you even mess around with re-hooking the the barrels? You really do have to look hard to see the daylight through the side of the action. There is absolutely no movement at all with any parts. Like I said before though this is my first build. I don't want it to blow in my face!!




What make is it? Sometimes its not even worn, its badly fitted. How did you check the movement?

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"


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500Nitro
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Re: Re-hooking a set of Barrels [Re: 450_366]
      #147523 - 10/12/09 01:28 AM


Metalguy

With the odd exception on here, I don't think that many of us are qualified to give gunsmithing advice which is what you are after.

Personally, I would be more worried about the barrels than the hook / joint.

Just my HO.


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Metalguy
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Re: Re-hooking a set of Barrels [Re: 450_366]
      #147532 - 10/12/09 06:46 AM

It's a Sauer made in 2-1963. I have posted pics of it on another thread in this forum. "SAUER DR Project" Let me know what you think!

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Metalguy
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Re: Re-hooking a set of Barrels [Re: 500Nitro]
      #147533 - 10/12/09 06:54 AM

I know most guys on here are not gunsmiths as I am not either, but this is the only group I can ask these questions. Up here in northern Wyoming,(where it's -12 degrees F today!), most people have never even heard of a double rifle. If they have, they were telling their buddies that "DANG! I seen a gun that costed $20,000! That's five times what I paid for my pickup!" All jokes aside though, I even talked to the gunsmith I use to work on my m-14 about it. He has never even heard of anyone ATTEMPTING to convert a shotgun, but he's willing to take a stab at it. I have confidence in him as he was a tool and die maker for a lot of years and is now semi-retired doing gunsmithing. So almost any advice I get on here helps me with my twisted thought processes on this project. Thanks!

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500Nitro
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Re: Re-hooking a set of Barrels [Re: Metalguy]
      #147534 - 10/12/09 07:04 AM


LOL, Yes, I know what you mean with a few of those responses.

All my DR's cost more than my car LOL.


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peter
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Reged: 11/04/07
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Re: Re-hooking a set of Barrels [Re: Metalguy]
      #147537 - 10/12/09 07:32 AM

Quote:

It's a Sauer made in 2-1963. I have posted pics of it on another thread in this forum. "SAUER DR Project" Let me know what you think!




metalguy

i think this is something like this you are talking about, right ?





sorry about the picture quality, these are just snapshots of what would consist of a truck gun i made for fun, and i promised my boss that i would tell everyone that my place of employment has nothing to do with this what so ever, and this in no way shape or form reflects work from John Rigby & Co. LONDON, where it is a No-No to put rifle barrels on a german shotgun action

THIS action were plenty strong enough for this job, but i wont be responsible for your action holding up to the stress, sorry but it has to be said.

remember to have the gun profed when finished.

GUN facts: Suhl 12 gauge shotgun from 1938, henry atkin barrels from 1930, mated up in two days because that were all i had.
caliber 450/400 3"
weight: 9 punds 3 ounces, yes it is frisky

it is my allweather gun, toss into the truck and forget about it, but it still shoots pretty good.

hope this helps.

P.S the name of the gun is THE DUCK because of the engraving at the bottom of the action, real classy

best

peter

Edited by peter (10/12/09 07:35 AM)


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500Nitro
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Re: Re-hooking a set of Barrels [Re: peter]
      #147541 - 10/12/09 07:48 AM


Peter

I love your caveat LOL, very good.

All these things have a place - the other thing is you probably learn't a fair bit from it.


I have 2 Merkels, one 470 and one scoped 375H&H that like you, I call my THRASH guns - even though I have taken my English guns into some horrible places, I decided I needed a couple of guns that I couldn't care if they got thrashed by accident.


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450_366
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Reged: 17/01/07
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Re: Re-hooking a set of Barrels [Re: peter]
      #147542 - 10/12/09 07:54 AM

Ahh, a gun for sitting ducks, thats a perfect caliber for the job also.

Done in two days, thats impressive, and it looks really nice despite of the timelimit.

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"


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Bramble
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Re: Re-hooking a set of Barrels [Re: 450_366]
      #147546 - 10/12/09 08:24 AM

Quote:


This makes me want to comment the types of action with a vertical pin lockup as the bissel and the german one in this thread http://forums.nitroexpress.com/showflat....;gonew=1#UNREAD

Yeas they are excellent third fasteners visually, but as an lockup the will lack in comparision with a common third fastener.

Does this mean the are vorse, hell no, but they are not as strong as crossbolt for instance, would i want one, hell yeah.





I think that I should point out that Rigby/Bissel Rising Bites do not rise vertically but at an angle of 12 degrees +- toward the rear of the action. Thus the more the action tends to bend or open the tighter they grip.

Further that as the third bite does not have to rise before the action is fully closed there are tighter clearences in place and more contact possible than for example a dolls head. as the dolls head is discribing an arc into a blind hole and is difficult (very) to achieve a decent fit.

By its nature the Rigby Rising bite is one of the very strongest lockups.



Regards


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450_366
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Re: Re-hooking a set of Barrels [Re: Bramble]
      #147547 - 10/12/09 08:37 AM

Quote:

Quote:


This makes me want to comment the types of action with a vertical pin lockup as the bissel and the german one in this thread http://forums.nitroexpress.com/showflat....;gonew=1#UNREAD

Yeas they are excellent third fasteners visually, but as an lockup the will lack in comparision with a common third fastener.

Does this mean the are vorse, hell no, but they are not as strong as crossbolt for instance, would i want one, hell yeah.





I think that I should point out that Rigby/Bissel Rising Bites do not rise vertically but at an angle of 12 degrees +- toward the rear of the action. Thus the more the action tends to bend or open the tighter they grip.

Further that as the third bite does not have to rise before the action is fully closed there are tighter clearences in place and more contact possible than for example a dolls head. as the dolls head is discribing an arc into a blind hole and is difficult (very) to achieve a decent fit.

By its nature the Rigby Rising bite is one of the very strongest lockups.



Regards




I suspected it would be a bit provocing to write it, given the recent development it the firearms industry around the world.

But in strenght compared to the cutting forces needed to open a crossbolt, i still think it will fall behind. I would love to own one. Just got some other things to pay for, like food, house, wife, children, etc.

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"


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Bramble
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Re: Re-hooking a set of Barrels [Re: 450_366]
      #147552 - 10/12/09 09:44 AM

Dear Andreas

Not trying to sell you one, just wanted to give the facts re various actions.

In A DR Rising bite, the hoop/ top extension, bears on 1/2 of an 11mm long 7mm Dia pin. That is 120 MM square of contact face. Far more than a cross bolt.

The strongest action of all is the old Jones Underlever. Or the New snap underlever London Rigby, but you dont get that until summmer 2010

Regards


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450_366
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Re: Re-hooking a set of Barrels [Re: Bramble]
      #147555 - 10/12/09 10:01 AM

Quote:

Dear Andreas

Not trying to sell you one, just wanted to give the facts re various actions.

In A DR Rising bite, the hoop/ top extension, bears on 1/2 of an 11mm long 7mm Dia pin. That is 120 MM square of contact face. Far more than a cross bolt.

The strongest action of all is the old Jones Underlever. Or the New snap underlever London Rigby, but you dont get that until summmer 2010

Regards




Yeah, how do one messure the surface on a crossbolt? If properly fitted it would be 0, cant be right.

To be honest i didnt know the angle was that steep, i does make a huge difference, but if im right its more of an displacement of metal versus cutting.

And the jones, i will come in an 8 bore i hope?

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"


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Sarg
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Re: Re-hooking a set of Barrels [Re: peter]
      #147563 - 10/12/09 12:08 PM

Peter she looks good ! I bid on those barrels at Holts Im sure , the guy said I would get them cheap not to worry ! !
Then my Purdey trained gunsmith here said too hard to impossible to fit to another action , both these guys were proved wrong LoL ! !


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