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#577499 - 08/10/20 09:16 PM Fitting an early Ithaca 37 barrel
John Roberts Offline
Sidelock
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Registered: 03/21/02
Posts: 2359
Loc: Southern Miss
I've found a barrel for my early 50's 16 ga. Ithaca 37 I'm interested in buying. My gun is s. n. 397437. Will this barrel work (it is a Roto Forged barrel confused)?:
https://www.gunsinternational.com/guns-f...un_id=101471407
and how difficult are they to make fit?
JR


Edited by John Roberts (08/10/20 09:22 PM)
_________________________
If it won't go, don't force it.

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#577501 - 08/10/20 09:22 PM Re: Fitting an early Ithaca 37 barrel [Re: John Roberts]
Dennis Potter Offline
Sidelock
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Registered: 12/31/01
Posts: 322
Loc: Muskego, WI
The early barrels screwed in to the action, later barrels utilized concentric thread-like rings, but they did not screw in. Sorry I don't know what serial number range that would be, but I am sure someone, Walt, perhaps, will come along.
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Dennis Potter

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#577502 - 08/10/20 09:23 PM Re: Fitting an early Ithaca 37 barrel [Re: John Roberts]
John Roberts Offline
Sidelock
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Registered: 03/21/02
Posts: 2359
Loc: Southern Miss
Thanks Dennis. Ad from GI now attached.
JR
_________________________
If it won't go, don't force it.

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#577504 - 08/10/20 09:37 PM Re: Fitting an early Ithaca 37 barrel [Re: John Roberts]
John Roberts Offline
Sidelock
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Registered: 03/21/02
Posts: 2359
Loc: Southern Miss
After closer inspection of my barrel's threads and shank, don't think this barrel will work...
JR
_________________________
If it won't go, don't force it.

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#577505 - 08/10/20 09:51 PM Re: Fitting an early Ithaca 37 barrel [Re: John Roberts]
ChiefAmungum Offline
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Registered: 04/10/10
Posts: 339
The interchangeable barrels start at SN 855,000. Earlier barrels have the serial number matching the gun they were fitted to. NSN should imply the newer, interchangeable barrel. A replacement older style barrel will need the head space checked/adjusted to your receiver to be correct.
Chief

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#577507 - 08/10/20 10:43 PM Re: Fitting an early Ithaca 37 barrel [Re: John Roberts]
John Roberts Offline
Sidelock
**

Registered: 03/21/02
Posts: 2359
Loc: Southern Miss
Agree Chief. Thanks.
JR
_________________________
If it won't go, don't force it.

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#577510 - 08/10/20 11:25 PM Re: Fitting an early Ithaca 37 barrel [Re: John Roberts]
Ted Schefelbein Offline
Sidelock
**

Registered: 01/02/02
Posts: 8149
Loc: mpls, mn.
The model 37s older cousin is the Remington model 17, an identical appearing gun with many differences (no parts Interchange between the two designs) and one can usually swap barrels between different examples of the Remington.
That almost never happens with the model 37s built prior to serial 855,000. A gunsmith can often get them to fit, but, it is not 100%.

Best,
Ted

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#577521 - 08/11/20 08:56 AM Re: Fitting an early Ithaca 37 barrel [Re: John Roberts]
GLS Offline
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Registered: 03/23/11
Posts: 3462
Loc: Lowcountry, GA
I had Les Diamond of Diamond Gunsmithing fit an early 20 ga. barrel onto a 1957 M37. He did so without altering and rebluing the receiver as does the current Ithaca factory. Les was the head gunsmith at old Ithaca in NY.


Edited by GLS (08/11/20 08:59 AM)

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#577523 - 08/11/20 09:07 AM Re: Fitting an early Ithaca 37 barrel [Re: John Roberts]
Geo. Newbern Offline
Sidelock
***

Registered: 01/02/02
Posts: 7338
Loc: Georgia, USA
The later barrels will fit an early model gun, but the gun won't shoot reliably. I have 1960 37 with two barrels, one for duck and the other for upland. The upland barrel went bad and I replaced it with one of the interchangeable barrels. It would shoot sometimes and ftf at others...Geo

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#577528 - 08/11/20 09:30 AM Re: Fitting an early Ithaca 37 barrel [Re: John Roberts]
KY Jon Offline
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Registered: 03/09/02
Posts: 6557
Loc: Red State
Les Diamond has fit several barrels for me. Very happy with his work. This reminds me I have one solid rib 20 barrels I need to have him fit for me. He is very reasonable. 37 barrels can often be found on EBay if you keep looking. I seem to find one every few months that I need.

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