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Most Online9,918 Jul 28th, 2025
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Joined: Sep 2006
Posts: 194
Sidelock
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OP
Sidelock
Joined: Sep 2006
Posts: 194 |
I recently purchased an Ithaca 4E single trap gun made in the early 30's. It has two barrels numbered to the gun, one modified and the other full choke. The seller informed me it would be shipped in a hard case. When I received it, I was surprised to see that the case was a black leather covered trunk case with cast brass hardware and a lock with a key. The interior of the case has a strip of leather with the Ithaca name gold embossed on it stitched to the divider that separates the top "lid" and bottom of the case. The case is approx 5" high, 7" wide and 35" long. The "lid" is padded and lined with a brown flannel type of material and houses the buttstock/receiver, while the bottom has fitted compartments for each of the barrels and the forearm. Did Ithaca make cases such as this for their guns? Although the case is intact, it needs a few small repairs and relining. Does anyone know someone who does this type of work? Any info would be greatly appreciated.
LCSMITH
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Joined: Jan 2002
Posts: 625
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 625 |
Vern Brinkerhoff can do the case restoration and is also in Northern Calif. 916 408-0663.
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Joined: Dec 2001
Posts: 2,403 Likes: 17
Sidelock
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Sidelock
Joined: Dec 2001
Posts: 2,403 Likes: 17 |
Ithaca Gun Co. did not make cases BUT did have other companies make them for their guns. Seems as though you have one of their treasures complete with a case. Congratulations!! Enjoy your American classic. What is its serial number??
Walter c. Snyder
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Joined: Sep 2006
Posts: 194
Sidelock
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OP
Sidelock
Joined: Sep 2006
Posts: 194 |
Walt and Vern - thanks for the replies. Walt, S/N is 401009. After looking at the gun closer, both barrels are marked as full choke (4). Constriction in one barrel is about .035. The other barrel is the same constriction, but choke starts about 1" closer to the breech and the last 1" opens up to about .028. Any idea what might be going on here? Both barrels are 32". Is there any way to determine if both barrels were ordered with the gun or if one was fitted later? Thanks.
LCSMITH
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Joined: Jan 2002
Posts: 5,954 Likes: 12
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 5,954 Likes: 12 |
B F - I'll offer "an" explaination, not necessarily "the" explaination. There have been a lot of experiments to obtain more choke effect than is available with the typical 0.035" to 0.040" constriction usually refered to as "Full." Tighter constriction is usually counter-productive. Constriction profiles other than conical have not been proven to work. So, the choke of a convergent section followed by a divergent section may be such an experiment. I'm of the opinion that shot "flows" through the choke as a fluid and follows fluid dynamics principles. If so, the shot column would experience a gain of velocity and a lowering of internal pressure as it passes through the convergent section (venturi principle). The lowering of internal pressure would result in less "spring apart" of the pellets. From a fluid dynamics perspective, the shot is at some state resembling "sonic" velocity at the 0.040" constriction and will not shed any more pressure with further constriction - it will actually regain some pressure. However, if a sonic fluid transitions from a convergent section to a divergent section, it will continue to accelerate as it continues to loose pressure. This is the rocket nozzle principle. I don't yet know if it works that way, but would dearly love to see some comparison patterns from the two barrels. I'd bet that rather than trying for a more open pattern with the divergent section they were trying for greater choke effect.
Any chance you could do some patterns?
Last edited by Rocketman; 05/04/07 11:27 AM.
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Joined: Dec 2001
Posts: 2,403 Likes: 17
Sidelock
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Sidelock
Joined: Dec 2001
Posts: 2,403 Likes: 17 |
BF, I sent you a PM regarding your Knick
Walter c. Snyder
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Joined: Oct 2006
Posts: 625
Sidelock
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Sidelock
Joined: Oct 2006
Posts: 625 |
Gee Walt. We all want to know. RCC
R. Craig Clark jakearoo(at)cox.net
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Joined: Apr 2003
Posts: 973
Sidelock
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Sidelock
Joined: Apr 2003
Posts: 973 |
Id like to see a picture of this case. If you dont know how to post one email me and Ill post it for you. Walt you cant leave us hanging like that!! ross@berck.org
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Joined: Sep 2006
Posts: 194
Sidelock
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OP
Sidelock
Joined: Sep 2006
Posts: 194 |
Walt - I did not, for some reason, receive your PM, and tried unsuccessfully to send you one. Could you please give it another try. Thanks. Bill
LCSMITH
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Joined: Dec 2001
Posts: 2,403 Likes: 17
Sidelock
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Sidelock
Joined: Dec 2001
Posts: 2,403 Likes: 17 |
For Bill and the world, Here is the pm sent to you. It seems PMs are not working with the 'new' set-up. Hello Bill, Your gun was shipped 7/14/27 to Abraham-Foss Co., Flynt, MI. Listed as a 4E with 32 a inch barrel so nothing new there. No mention of the 2nd barrel. I think Rocketman's theory is as good as any. There were a lot of people doing different things to chokes. Herb Orr comes to mind. Enjoy that old vetern. Jim Guild can do repair work if ever neded. I have his phone number downstairs if you need it. Best, Walt
Walter c. Snyder
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