Remington 1100 20 gauge with serial number ends with X

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hobie 1

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I purchased a Remington 1100 20 gauge for my daughter. The serial number ends with an X. I have checked for replacement barrels and find the ones made today will not fit the older gun. I understand the early guns were made on a 12 gauge frame. My question is … What is the difference in the barrels and if I buy a new barrel could a gun smith adapt the new barrel to fit the old gun?
 
The gun is in excellent condition and the choke is full. I wanted to get an IC choke barrel and leave the original barrel as is. If I can’t find a barrel, Carlson’s choke tubes maybe the way to go.
 
I just talked to Remington parts and no way can a new barrel be modified to fit the old gun.
 
As noted above, Corson's would be a good place to start. His web page shows a couple 20g 100 barrels w/ IC chokes.

Remington Shotgun Barrels​
Model 1100 20ga STANDARD WT​
A Quarter will fit through the mag band​
Serial number ends with X or N

28” Full Vent Mag 95% $350

28” Full Mag 96% $250

28” Mod Mag 95% $250​

1100 20ga Standard WT 2 ¾”​

28” Mod Vent 95% $350

26” I/C Vent 95% $350

28” Cutts Vent 95% $350

28” Mod 95%+ $250

26” Mod 95% $250

26” I/C 95% $250

28” Adj Lyman 90% $225

24” Cyl 90% $200

23” Cyl 95% $200​
 
The first ones were built on the 12 gauge receivers like the first 20 gauge 870's we also did. it's expensive but it can be done, you use the chamber of the 12 gauge barrel and turn and fit a 20 gauge barrel blank to fit into the 12 gauge chamber. it's harder than i have time to write here but the impossible part is finding the feed latch for the large frame to 20 gauge barrel, you have that all ready so your one step ahead in the job.The barrel thing is like re-tubeing or sleaving, a good place for re-sleaving tubes is Hugh Lomas(he's on the web), this is easier than turning down a barrel blank. but hit the gun sites for used barrels for a while before thinking of doing the work or having it done, it costs about $1200.00 for a complete job with rib and chokes.
 
Some good general info here for those (like me) who didn't know.
http://www.remingtonsociety.com/rsa/journals/1100

Model 1100 serial numbers (on the receiver) started with the number 1001. All but the early guns also have a prefix letter. All Model 1100 Remington shotguns were serial numbered in blocks of numbers. Each serial number has a suffix and the following indicates the meaning:

V = 12ga. standard 2" frame/receiver
M = 12ga. magnum 3" frame/receiver
W= 16ga. 2" frame/receiver
X = 20 ga. 2" frame/receiver
N = 20 ga. magnum 3" frame/receiver
K = 20 ga. lightweight 2" frame/receiver (LW)
K = 20 ga. lightweight 2" frame/receiver (LT)
U = 20 ga. lightweight magnum 3" frame/receiver
J = 28ga. 2" frame/receiver
H = .410 3" frame/receiver

I'm still not clear on the difference (if any) between the LW and LT 20 gauge receivers, though.
 
I have been shopping for a standard weight 20 ga. barrel for a while now. They are out there but most you find are junk or priced out of sight or they will try to insist that a LT-20 barrel will fit. I have decided to go with a choke tube install and a re-blue. It has more use to me as a shooter than any collectable value.
 
I found out the same thing with my wife's X serialed 1100 20 ga field gun with a 28" mod plain barrel. I ended up choke tubing the original barrel and found a 26" skeet barrel at a pawn shop.

The tube installation and skeet barrel ended up costing twice+ what I paid for the shotgun. Added all together I could have purchased her a new gun for less but by then she was so attached to it I was stuck.
 
When I had a similar dilema with my 20ga 1100 I wound up sending the barrel to Carlson's and had it threaded for the Tru-Choke. Had them ship it back with cylinder, improved cylinder, modified, and full choke tubes. The price has gone up quite a bit since I had mine done, but it still looks reasonable.

I bought the expanding choke wrench, but find I never use them. A coin works just as well and is easier to find.

Oh yeah, get the cylinder choke rather than shooting the thing without a choke tube installed.
 
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