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Posted: 5/17/2020 12:01:01 PM EDT
[#1]
1100 magnum barrels only have one gas port drilled in them vs 2 ports on a standard 2 3/4" barrel. A heavy 2 3/4" shell might generate enough pressure to cycle in a magnum barrel but it probably depends on a lot of variables. There shouldn't be any issues with the action or chamber using 2 3/4" shells. So yes, it's a power factor not a size factor.
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Posted: 5/17/2020 12:06:25 PM EDT
[#2]
Quote HistoryQuoted: 1100 magnum barrels only have one gas port drilled in them vs 2 ports on a standard 2 3/4" barrel. A heavy 2 3/4" shell might generate enough pressure to cycle in a magnum barrel but it probably depends on a lot of variables. There shouldn't be any issues with the action or chamber using 2 3/4" shells. So yes, it's a power factor not a size factor. |
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Posted: 5/17/2020 8:11:40 PM EDT
[#3]
My 1100 was made in the mid 60s and shoots 2 3/4 shells only.
Are you sure it is a 3 inch gun? I think they are marked Magnum on the receiver. Maybe someone put a 3 inch barrel on a 2 3/4 receiver over the years. |
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Posted: 5/18/2020 12:49:22 AM EDT
[#4]
The 1100 I inherited from my FIL takes 2 3/4 shells only. It was built in the early 60's I think. The smooth full choke barrel with bead is 30 inches long. I remember him saying he got a shorter mod choke vent rib barrel. It ALSO measures 30 inches.
 Trying to decide which barrel to chop down.Paladin |
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Posted: 5/18/2020 1:23:16 AM EDT
[#5]
1100 Magnum has small gas port for less gas to cycle 3" magnum & 2 3/4" magnum "heavy load" shells well without excessive wear.
They are not ported as open - wide for function with "Light" 2 3/4" Dove or skeet loads. |
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Posted: 6/6/2020 10:13:40 PM EDT
[#6]
My dad's 1100 Magnum will cycle high velocity non Magnum shells. If they give you trouble you could always find another barrel and have the gas port opened up a tiny bit, I know a few guys that have some that without any issues.
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Posted: 6/13/2020 5:24:11 PM EDT
[#7]
yes,
Magnum 1100 will only function on 3 inch shells 100% of the time. I have one that I use for home defense and slug use. I also have a extra barrel for duck hunting in storage if necessary. |
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Posted: 6/14/2020 9:39:19 AM EDT
[#8]
I had a buddy that got a used 1100 3" gun. He just wanted to shoot trap/skeet with it. I found the gas port sizes online, drilled the gas port to the 2 3/4" barrel size and we were up and running. Real simple.
ETA: https://www.shotgunworld.com/bbs/viewtopic.php?f=55&t=46271 Actually, I think it is kind of interesting information (hole sizes) in Remington barrels so I will print it out. #47 drill bit for 12 guage 2 3/4 with 22 thru 34 inch barrels #44 drill bit for 12 guage 2 3/4 with skeet barrel #52 drill bit for 12 guage 3 inch with 30 inch magnum barrel #48 drill bit for 16 guage #48 drill bit for 20 guage 2 3/4 with 22 thru 26 inch barrels #51 drill bit for 20 guage 2 3/4 with 26" and 28" Lt. Wt. barrels #51 drill bit for 20 guage 2 3/4 with 26" and 28" LT-20 barrels #51 drill bit for 20 guage 2 3/4 with Skeet-Lt-20 #52 drill bit for 20 guage 3 inch with Lt-20 Magnum barrel #51 drill bit for 28 guage 2 3/4 #53 drill bit for .410 guage 2 3/4 SKEET #51 drill bit for .410 guage 3 inch This information is from Gunsmithing: Shotguns by Pat Sweeney, and he got the information from Brownells. |
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