• Friends, our 2nd Amendment rights are always under attack and the NRA has been a constant for decades in helping fight that fight.

    We have partnered with the NRA to offer you a discount on membership and Muzzleloading Forum gets a small percentage too of each membership, so you are supporting both the NRA and us.

    Use this link to sign up please; https://membership.nra.org/recruiters/join/XR045103

jug-choke beginning

Muzzleloading Forum

Help Support Muzzleloading Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

George

Cannon
Joined
Aug 8, 2010
Messages
7,913
Reaction score
1,969
Jug choking is pretty popular these days, it apparently works fairly well, and there's a lot of discussion of it on the forum. Like so many things about our hobby, questions come up as to when it got started, and whether we are HC/PC if we use it in our guns. In a good but long article in a British magazine, The Gun Collector, an explanation of its origins is given which seems well researched, so I thought some of our few history buffs might be interested. Sorry, even the compact version is too long.

In 1869-70 two duck hunters, Fred Kimble of Peoria, Illinois, and Joseph Long of Boston were in a friendly competition in duck shooting and agreed to begin the next season with heavier muzzleloading guns "bored to shoot as close as possible". They worked with their own gunsmiths to develop these guns, and over the next two years came up with some guns which shot amazingly well. They were choked, and in essentially the same way we choke guns today, with the main bore the same diameter up to about two inches from the muzzle, and then constricted to various degrees. Word spread of the prowess of the two hunters with these new guns. In the shop of a gunsmith in Young America, Illinois, a hanger-on named Russell M. Faburn got to examine one of Kimble's guns, and, unable to inspect the entire bore, concluded that it was a recess cut only right behind the muzzle. He invented an adjustable "reamer for boring out shot-gun barrels" to do that and patented it in June of 1872. He named his process choke-boring. He had a successful business of selling the reamers over the next few years in the western states.

So, the date of development of jug-choking, as we call it, was apparently 1871-72, and it occurred in Illinois.

Here are the patent description and illustrations of Faburn's device.
******************
PATENT OFFICE.
RUSSELL M. FABURN, of YOUNG AMERICA, ILLINOIS.

IMPROVEMENT IN ADJUSTABLE REAMERS.

Specification forming part of Letters. Patent No. 128,37 9, dated June 25,1872.

Specification describing certain Improvements in Adjustable Reamers, invented by RUSSELL M. FABURN, of Young America, county of Warren, and State of Illinois.

The nature of my invention relates to a reamer for boring out shot-gun barrels, either with a straight bore or with a bore enlarged at any part, and contracted at either or both ends of the barrel, as desired. The invention consists in making the cutter, the backing, and the follower adjustable to the stock, and in providing devices whereby the adjustment may be effected while the reamer is within the gun-barrel, all as hereinafter fully described.

Figure l is a side elevation of my invention. Fig. 2 is a top view. Fig. 3 is a longitudinal sectional view of Fig. 2 on the line w. Fig. 4 is a side view of Fig. l with the backing removed. Fig. 5 is a top view of one of the adjusting-bars; Fig. 6, a longitudinal sectional view of the wooden backing. Fig. 7 a cross section of Fig. l on the line y y; Fig. 8, an [?] The drawings are all full size, except Fig. 8, which is double size. 1
A is the stock, with a threaded hole, a, at one end, into which the handle is inserted for operating the machine, and with a hole, also, at the other end, into which a screw-bolt, a', is inserted, for the purpose of holding a disk, B, in place. The end of the stock A receiving the handle is enlarged, as shown, leaving a shoulder, a", at the forward end of the enlargement, and the forward end carries a projection, a, having a longitudinal recess in which the knife or cutter C rests. D is an adjusting-bar for the cutter C. It is wedge shaped, as shown, and provided with a hook, c, at its rear end. Its forward end is passed through a hole, b, in the disk B, and also through a hole through the rear end of the projection a, resting between the stock A and the cutter C, so that when it is pushed forward it will raise the cutter, and, when drawn out, will allow the cutter to recede. E is the follower formed in its cross-section, as shown at Fig. 7, with ledges at each side fitting snugly to the stock A, its upper side flat, with the corners e e slightly rounded off. G is a wedge-shaped plate, with two arms, g g, (see Fig. 5,) projecting forward through grooves in the sides of projection a m, and having on their outer ends hooks g g. The wedge G r passes between the follower E and the stock A, (see Figs. 3 and 7,) and may be pushed forward to elevate the follower E, or drawn back to depress the same. H is a wooden backing formed in its cross-section, as shown at Fig. 8, and in its lower part with two inclined planes, h h, as shown at Fig. 6. I is a bar, with a hook, i, on its rear end, and two inclined-plane elevations, t" i', on its forward end, corresponding with the incline planes h h in the backing H, as shown at Fig. 3. It will be seen by the same figure that, pushing the bar I forward, the elevations i" t" will raise the ends of the backing H simultaneously, and withdrawing or pulling it back will allow both ends to recede alike. It will be seen at Fig..8 that the bars D and I rest against the flattened sides of the head of the bolt a', and prevent its shaking loose. It will also be seen at Fig. 9, which shows the disk B alone, that it contains notches through which the adjusting-bars pass, which serve to hold it in place. The cutter O is held in position longitudinally at one end by the upper side of the disk B, and at the other by a bridge, S. (See Fig. 2.)

The operation of my invention is as follows:
The backing, cutter, follower, and adjusting-bars being all in place, the reamer may be inserted in the gun-barrel, and the operator may with a hooked rod reach the adjusting-bars from the end of the barrel forward of the cutter, and either withdraw or push in either bar, as desired, first adjusting the follower and the backing to fit snugly in the barrel, and to preserve the operating handle in the rear, about in the center of the barrel. Then the cutter may be set to trim a light or heavy shaving, as desired, with a rotary motion of the reamer. It will be plainly seen the operation of the reamer is to cut a bore smaller at the muzzle and larger back, as desired. The follower E acts as a guide and as a burnisher.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of the adjustable backing H, constructed substantially as described, with the adjusting-bar I fi i', stock A, and follower E, bar G, backing H, bar I, disk B, and screw a', when combined and arranged to operate substantially as and for the purpose I set forth.

RUSSELL M. FABURN. Witnesses:
PLATT R. RICHARDs, M. H. BARRINGER.
****************



Spence
 
Fabulous find Spence!

I've always wondered about its origins, guessing (poorly it turns out) that its roots were in the world of cannon tubes which were larger and simply easier to work with. My mistaken notion.... Again! :rotf:
 
I've jug choked a couple of shotguns. I use a adjustable reamer that can be adjusted from one end by turning the screw sticking out. Only a couple of thousands can be taken out because the reamer is tightened while in the barrel. Then it's turned back down, removed, cleaned, and do it all over again. The reamer was silver soldiered to a 1/2" steel rod with a tee handle on the far end. Takes a little time, but well worth the effort. Paul
 
I recall reading many years ago in an article about Olympic shot gunning that jug choking was a Russian innovation. Surprising that the writer was that far out of touch!
 
It's also called a "Tula Choke" after the Russian armory at Tula.

choke.jpg

http://www.trapshooters.com/threads/choke-profiles.50942/
 
Last edited by a moderator:
How do you all recon that those chokes would throw patterns ?
Some weird ones there that I have never seen before.
Like what does the bell one do ? Throw huge open patterns. Is the arc really tight ?
O.
 
In a web article on Shotgun Reports, Bruce Buck says this about the Tula choke,

"The history of the Tula choke is also very interesting. In the early ’50s the US Air Force skeet team was dominant in International events (sic transit gloria mundi). They used mostly Browning A-5s with Cutts compensators at the time. This set up was quite common in the US. The story goes that after they had won a major shoot somewhere in Scandinavia, the Russian coach came up to one of the members and asked to buy his A-5. The offered price was so high that the American could not refuse. An hour or so later the Russian returned and handed the gun back to him- less the front 18”³ of the barrel. All he had wanted was that Cutts. Shortly thereafter the Russians came out with the “Tula” jug choke, named after their main arsenal at Tula..."
http://shotgunreport.com/2014/03/21/tula-chokes/

While this is interesting and I don't doubt the author, I just did a quick search in my copy of W.W.Greener's book THE GUN AND ITS DEVELOPMENT , 9th Edition, Bonanza Books.

The 9th Edition was created in 1910.

On page 261 there are drawings of 6 different barrel crossections showing 3 different forms of bores and 3 different styles of chokes.
The choke drawing labeled as #4 is called a "Recess Choke" and it clearly is what we would call a Jug choke today.

Tula may lay claim to the design but as often happens, their invention turns out to be an old, established idea. :wink:

I can't see that the "Bell" choke would do anything at all.

Many people have tested the Blunderbus which is an extreme example of a Bell choke.

They all have found the Blunderbus patterns just like a cylinder bored gun. There is no expansion or flaring of the shot pattern that one might expect to see.

The Blunderbus's enlarged flair does make rapid reloading easier which is the supposed reason that Coachmen, protecting the coach and its occupants from highwaymen liked to carry them.
 
Last edited by a moderator:
Thanks for that Zonie.
I think that E & F look like something that I don't want.
If that bell choke shot like cylinder there would be no point to it other than easy to ram wads into.
O.
 
That "Bell" choke is nice for loading wads and cards into the muzzle. Two or three of my original muzzle loaders have this feature, and it is nice for loading. Seems to pattern about like cylinder. I don't know that I'd call it a choke though.
 
That Bell "choke" almost looks like a "Coned muzzle".

I wonder if the Italians (who, I believe, made that drawing) saw some Coned muzzles on rifles and figuring they must be a choke of some kind so they just lumped it in with with the rest of the "chokes"?
 
The coned muzzle is not really a choke but was used on fowling guns in the 18th century as a believed improvement on pattern. It was sometimes used in conjunction with a relieved or "roughed" breech. It throws the same as cylinder I MO but is an aid in loading as and adds to the historicity and looks. A nice feature when all the available barrels these days carry too much meat in the fore parts and some not enough aft to give a quick taper.
 
I suspect that the word "choke" was put on the illustration by Jim White and not Marcello Giuliani, who may have been thinking more along the lines of "muzzle configuration." (I'm not blaming Jim White, translation requires some liberty to make sense in the target language.)

It's a long way of saying you're probably right.

I might note that the "bell" was certainly used between the 1830's and 1860's.
 
Hi,
I have found that the "B" or Niche Tula choke is best for turkey and geese.
If done well it really improves choke pattern at longer distance.
But you also have to alter your wads and shot to get best patterns.
Fred
 
Back
Top