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Author Topic: Double barrel flintlock shotgun project (updated 1/19/2019)  (Read 5235 times)

Offline David Rase

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Double barrel flintlock shotgun project (updated 1/19/2019)
« on: January 13, 2019, 08:06:31 PM »
Been wanting to build a side by side for a long time.  Finally got started.  Got the breech plugs made, fit and installed and the tang rough milled out.  Hopefully today I will get the hooked breeches mated to the tang.  Then I need to ream and hone the chokes out of the bores so it can be loaded from the muzzle.  It is looking like I will have pretty close to equal amounts of time just building the barrel assembly as in stocking the gun.
David



« Last Edit: January 20, 2019, 03:16:58 AM by David Rase »
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Offline Craig Wilcox

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Re: Double barrel flintlock shotgun project
« Reply #1 on: January 13, 2019, 08:08:27 PM »
Wow!, David - you have some hard work ahead!

How are those barrels joined?
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Offline Telgan

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Re: Double barrel flintlock shotgun project
« Reply #2 on: January 13, 2019, 08:23:14 PM »
 David - Whatcha using for barrels? I suspect i, and many others, will be asking more "whatcha" type questions. I am subscribed to this thread
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Offline D. Taylor Sapergia

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Re: Double barrel flintlock shotgun project
« Reply #3 on: January 13, 2019, 08:49:36 PM »
This is a great project.  Please keep us posted as you proceed.
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Offline P.W.Berkuta

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Re: Double barrel flintlock shotgun project
« Reply #4 on: January 13, 2019, 09:04:10 PM »
Dave - did you take pictures of the fabrication of the breach plugs and barrel breach area - I find that to be the most interesting of the barrel build up. Looks like you did a nice job of it.
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Offline Rolf

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Re: Double barrel flintlock shotgun project
« Reply #5 on: January 14, 2019, 12:25:11 AM »
Quote from: D. Taylor Sapergia on January 13, 2019, 08:49:36 PM
This is a great project.  Please keep us posted as you proceed.

I agree With Taylor . I look forward to following  Your progess. A lot for us to learn from you.

Best regards
Rolf
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Offline bgf

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Re: Double barrel flintlock shotgun project
« Reply #6 on: January 14, 2019, 02:17:20 AM »
Looking forward to it, and it's a long term goal of mine to build one also. 
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Offline Ed Wenger

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Re: Double barrel flintlock shotgun project
« Reply #7 on: January 14, 2019, 02:34:28 AM »
Great start, David!  Now I know who I can hire to do double breech plugs 😬....



           Ed
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Offline David Rase

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Re: Double barrel flintlock shotgun project
« Reply #8 on: January 14, 2019, 06:06:53 AM »
Taylor,
I will keep you guys posted on the progress, as long as you have patience.  I have an Isaac Haines I am finishing up for a customer, an Allentown that I am inletting the barrel, drilling the ramrod, inletting the lock and triggers and band saw profiling the stock for a client and a broken wrist repair for someone else.  Once these projects are out of the way the side by side will start to move right along.  I wanted to build and inlet the barrels just to get that chore out of the way.

Tom,
I had a set of modern 20g barrels made in Spain that I started with.

Paul,
I will post some pictures of the fixture I made to hold the breech plugs as well as the breech plugs.  I have to pull the plugs a few more times to ream and hone the choke out of the muzzle as well as finish drilling the powder chamber holes to the correct depth once I locate the touch holes and then to case color harden.  I will be breeching up a couple more sets of barrels in a couple of months and will document the process in more detail.  This first set was a lot of seat of the pants engineering.

Ed,
I should get more proficient at doing this as I have a couple more sets of double barrels I have been collecting that I plan on breeching and possibly putting up for sale.
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Offline Curtis

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Re: Double barrel flintlock shotgun project
« Reply #9 on: January 14, 2019, 08:13:38 AM »
Very nice job David!  Just the kind of stuff that makes my mouth water....  ;D  Sending you a PM.

Curtis
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Offline Mike Brooks

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Re: Double barrel flintlock shotgun project
« Reply #10 on: January 14, 2019, 04:32:34 PM »
Good luck! I built 5 of those and swore them off for ever. I'm sure yours will be a dandy. Don't sell it, you'll regret it for ever.
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Offline flehto

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Re: Double barrel flintlock shotgun project
« Reply #11 on: January 14, 2019, 04:43:43 PM »
Know very little about building flint  S x Ss  but noticed the long breechplugs.....will they be patent  breeches? Keep us posted on your progress.....Fred
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Offline Long John

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Re: Double barrel flintlock shotgun project
« Reply #12 on: January 14, 2019, 05:45:10 PM »
Dave,

You have just proved you are smarter than I am!  My flintlock double is a French gun made with two barrels I got from Robert Hoyt.  It took me 5 tries to get the barrels soldered together right!

I got delayed for a year by other things in life but I am now finding the time to continue the project.  I am almost ready to start the carving and engraving so you will probably be done with yours before I am done with mine.

Doubles are a "challenge".

Have fun!

Best Regards,

JMC
John Cholin
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Offline Greg Pennell

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Re: Double barrel flintlock shotgun project
« Reply #13 on: January 14, 2019, 06:31:23 PM »
I have a set of old barrels that were given to me by a shooting buddy...and a good friend with a full-blown CNC machine shop...you really shouldn't be giving me ideas like this...

Now, the wheels are spinning...I just hope the hamster hasn't died...

Greg
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Offline jerrywh

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Re: Double barrel flintlock shotgun project
« Reply #14 on: January 14, 2019, 08:06:25 PM »
 Dave.
   Did you cut those barrels off above the forcing cones or did you make some plugs to fit the cones???
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Offline Rolf

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Re: Double barrel flintlock shotgun project
« Reply #15 on: January 14, 2019, 08:11:41 PM »
Quote from: David Rase on January 14, 2019, 06:06:53 AM

Paul,
I will post some pictures of the fixture I made to hold the breech plugs as well as the breech plugs.  I have to pull the plugs a few more times to ream and hone the choke out of the muzzle as well as finish drilling the powder chamber holes to the correct depth once I locate the touch holes and then to case color harden.  I will be breeching up a couple more sets of barrels in a couple of months and will document the process in more detail.  This first set was a lot of seat of the pants engineering.


Ireally look forward to that tutorial.


Best regards

Rolf
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Offline Daryl

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Re: Double barrel flintlock shotgun project
« Reply #16 on: January 14, 2019, 11:09:06 PM »
David R. - ainèt it great to be retired, with all that "just for me-time". LOL
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Daryl

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Offline David Rase

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Re: Double barrel flintlock shotgun project
« Reply #17 on: January 15, 2019, 12:34:29 AM »
Quote from: jerrywh on January 14, 2019, 08:06:25 PM
Dave.
   Did you cut those barrels off above the forcing cones or did you make some plugs to fit the cones???
Jerry,
I reamed the taper out of the forcing cones and then threaded the chambers with a taper tap and finished threading them with a modified bottoming tap. This gave me the slightest shoulder to seat the breech plug face on. 
David   
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Offline David Rase

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Re: Double barrel flintlock shotgun project
« Reply #18 on: January 15, 2019, 12:36:49 AM »
Quote from: Daryl on January 14, 2019, 11:09:06 PM
David R. - ainèt it great to be retired, with all that "just for me-time". LOL
Yep Daryl, I am living the dream.  Apprentice number 2 is due to arrive the first week in March.  I have not got apprentice #1 trained yet and he just turned 3.  It's all good.
David
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Offline Daryl

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Re: Double barrel flintlock shotgun project
« Reply #19 on: January 15, 2019, 02:55:05 AM »
LOL-  wonderful news, congratulations.
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Daryl

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Offline David Rase

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Re: Double barrel flintlock shotgun project
« Reply #20 on: January 20, 2019, 03:16:20 AM »
Got to spend some time on the double barrel today.  I was able to install the tang onto the hooked breeches and rough file the tang. I also installed an extension on my reamer and built a guide so I can remove the chokes so the barrels can be loaded from the muzzle.  I have my hones standing by after the reaming is complete.  Hoping to get the barrels inlet this week but I have 7 to do for clients.











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Offline Rolf

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Re: Double barrel flintlock shotgun project (updated 1/19/2019)
« Reply #21 on: January 20, 2019, 01:11:06 PM »
Looks great. Did you make the standing breech? If so, from what?

Best regards
Rolf
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Offline Mike Brooks

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Re: Double barrel flintlock shotgun project (updated 1/19/2019)
« Reply #22 on: January 20, 2019, 05:30:43 PM »
David,
 In my experience, after you ream the choke out the reamer finish may be fine, a mirror finish isn't needed for a shotgun to shoot excellent patterns. Lowell Tennyson leaves a lot of machine marks in his jug and they shoot fine. Of course some folks just can't live with machine marks....so expect you'll hone yours out anyway. ;)
 I used to make my standing breeches out of ginormous angle iron. Cut it out with a freakin' hacksaw. Good Lord I'm starting to have waking nightmares just thinking about it. :o  I'm glad I quit making those things, everything about them is pure drudgery.

 You go ahead and have fun, I'll watch! ;D
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Offline David Rase

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Re: Double barrel flintlock shotgun project (updated 1/19/2019)
« Reply #23 on: January 20, 2019, 07:08:26 PM »
Quote from: Rolf on January 20, 2019, 01:11:06 PM
Looks great. Did you make the standing breech? If so, from what?

Best regards
Rolf
Rolf,
Because I have a milling machine in my shop I was able to mill the standing breech out of a piece of 1018 bar stock.
David
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Offline Daryl

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Re: Double barrel flintlock shotgun project (updated 1/19/2019)
« Reply #24 on: January 20, 2019, 11:11:23 PM »
Nice job, David. Bringing it to Hefley this year?
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Daryl

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