shotgun barrel threading
#7211345
03/10/21 03:31 PM
03/10/21 03:31 PM
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Joined: Sep 2013
Posts: 18,386 Green County Wisconsin
GREENCOUNTYPETE
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Green County Wisconsin
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I am about to send in a 870 12ga 20 inch smooth bore slug barrel for threading to take Rem Chokes
I had been on the look out for a barrel that came threaded for chokes at a decent price and 18-21 inch barrels with chokes just seem like a rare thing. especially rifle sights and chokes
I suspect many of the 18s and 20s are made to a price point and most people only think about using them for short range shooting.
I keep thinking how much more versatile a 20 inch gun that is easy to carry would be if I could also get a good pattern out of it.
currently it is an I/C it shoots slugs decent but nothing to brag on I have better slug barrels.
I think I am going to pattern it with a few loads at 10 , 25 , 35 and 45 yards this weekend take pictures and then send it off so I have comparison when I get it back.
have you sent in barrels to get threaded ?
I am looking at Carlson , where did you send yours?
do you have a shorter 18-21 inch barrel with choke tubes and how do you like it ?
Last edited by GREENCOUNTYPETE; 03/10/21 03:33 PM.
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: shotgun barrel threading
[Re: GREENCOUNTYPETE]
#7211357
03/10/21 03:54 PM
03/10/21 03:54 PM
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Joined: Sep 2013
Posts: 18,386 Green County Wisconsin
GREENCOUNTYPETE
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the weight from 7 more inches of barrel and it is out where it makes a difference could cause less felt recoil. an extended ported choke tube can make a difference also
how was the group the same with the same choke ?
the recoil from the 20 inch slug barrel can be a bit much with slugs
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: shotgun barrel threading
[Re: GREENCOUNTYPETE]
#7211367
03/10/21 04:04 PM
03/10/21 04:04 PM
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Joined: Oct 2009
Posts: 6,366 east central WI
k snow
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the weight from 7 more inches of barrel and it is out where it makes a difference could cause less felt recoil. an extended ported choke tube can make a difference also
how was the group the same with the same choke ?
the recoil from the 20 inch slug barrel can be a bit much with slugs Don't recall exactly. My dad uses the 28 inch barrel and shoots the same loads I do, pattern is very similar. He runs a different choke tube though. We did the patterning about 20 years ago. I really don't want to do it again. I am not a recoil fan.
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Re: shotgun barrel threading
[Re: Monster Toms]
#7211374
03/10/21 04:15 PM
03/10/21 04:15 PM
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Joined: Sep 2013
Posts: 18,386 Green County Wisconsin
GREENCOUNTYPETE
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Being IC now it may not be thread-able. Id mic it and see what it measures in relation to the new bore size. I called Carlson and thy go by external measurement you need Remington Flush Choke Installation (12 GA ONLY) Includes three flush chokes and 2 wrenches. (Min. OD of .875" required) I have .880" on my barrel the true choke system limits the tubes you can buy a little but it can go with a thinner barrel MINIMUM OUTSIDE BARREL DIAMETER MEASUREMENTS FOR CHOKE INSTALLATIONS: 12 ga. lead shot and steel shot system .825"
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: shotgun barrel threading
[Re: GREENCOUNTYPETE]
#7211731
03/10/21 09:21 PM
03/10/21 09:21 PM
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Joined: Sep 2010
Posts: 2,779 Northern lower Michigan
Feedinggrounds
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Last I checked it cost north of $400.00 per gauge, to tool up for reaming and threading a barrel for choke tubes. None of my local smiths are tooled to do it yet.
you're only allowed so many sunrises... I aim to see every one of them!
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Re: shotgun barrel threading
[Re: charles]
#7211733
03/10/21 09:21 PM
03/10/21 09:21 PM
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Joined: Sep 2020
Posts: 943 Missouri
Osagian
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Will the gunsmith cut the choke out of the barrel before threading? Seems m like that would be necessary. Yes, unless you want barrel cut down. Choke is in the last few inches of the barrel. So, if you're staying with the same length barrel first the barrel is reamed to get rid of the old choke then the choke reamer is used.
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Re: shotgun barrel threading
[Re: Feedinggrounds]
#7211745
03/10/21 09:28 PM
03/10/21 09:28 PM
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Joined: Sep 2020
Posts: 943 Missouri
Osagian
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Last I checked it cost north of $400.00 per gauge, to tool up for reaming and threading a barrel for choke tubes. None of my local smiths are tooled to do it yet. Lots of smiths are doing what I do, just rent the reamer, use it and send it back. It's not bad, they let you use it for I think 5 working days excluding time in transit for shipping was around 50 bucks as I remember. A couple of companies out there renting reamers. 5D and Pacific Tool. No I'm not a gunsmith. Just a a guy with a lathe.
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Re: shotgun barrel threading
[Re: GREENCOUNTYPETE]
#7211755
03/10/21 09:33 PM
03/10/21 09:33 PM
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Joined: Feb 2013
Posts: 1,311 Northern Illinois
huntrap247
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I did exactly what you are doing several years ago. 870 slug barrel with IC choke and iron sights.
I had my barrel threaded so I could use it for turkey hunting. I don't remember were I sent it but it was a private gunsmith, and cost less than $100.
I love hunting with it being that it is much easier to handle for turkey hunting, and the iron sights keeps my head down.
Interesting side note, with the loads I use, my regular rem full choke outperformed my turkey super full outta the shorter barrel.
Some people refuse to see the truth when you bludgeon them over the head with it.
Member FTA-17I NTA NRA Patriot life member
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Re: shotgun barrel threading
[Re: Osagian]
#7211761
03/10/21 09:35 PM
03/10/21 09:35 PM
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Joined: Sep 2010
Posts: 2,779 Northern lower Michigan
Feedinggrounds
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Last I checked it cost north of $400.00 per gauge, to tool up for reaming and threading a barrel for choke tubes. None of my local smiths are tooled to do it yet. Lots of smiths are doing what I do, just rent the reamer, use it and send it back. It's not bad, they let you use it for I think 5 working days excluding time in transit for shipping was around 50 bucks as I remember. A couple of companies out there renting reamers. 5D and Pacific Tool. No I'm not a gunsmith. Just a a guy with a lathe. I have seen it done on You Tube with a hand turned brace. Seemed straight forward. My best bud runs a machine shop, and the lathe would sure be nice.
you're only allowed so many sunrises... I aim to see every one of them!
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Re: shotgun barrel threading
[Re: GREENCOUNTYPETE]
#7211813
03/10/21 10:14 PM
03/10/21 10:14 PM
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Joined: Sep 2013
Posts: 18,386 Green County Wisconsin
GREENCOUNTYPETE
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some day maybe I will try threading my own for now I think I will just send it to carlson. unless I call around and find some one local who does chokes to save me the shipping
odd thing is I will have more in the threading and chokes than the gun.
but less in the gun , threading and chokes than buying a new or used gun it is.
a handy gun to carry the Police 870 mag was all the best parts and they currently sell for between 500 and 800 dollars used depending on shape. even then it still wouldn't have chokes.
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: shotgun barrel threading
[Re: Osagian]
#7211876
03/10/21 10:50 PM
03/10/21 10:50 PM
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Joined: Sep 2013
Posts: 10,404 Northeast Oklahoma
Mike in A-town
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Last I checked it cost north of $400.00 per gauge, to tool up for reaming and threading a barrel for choke tubes. None of my local smiths are tooled to do it yet. Lots of smiths are doing what I do, just rent the reamer, use it and send it back. It's not bad, they let you use it for I think 5 working days excluding time in transit for shipping was around 50 bucks as I remember. A couple of companies out there renting reamers. 5D and Pacific Tool. No I'm not a gunsmith. Just a a guy with a lathe. I keep getting told I can rent a reamer... And I'm like why? I can buy a reamer from PT for about $180... For the cost of renting one 2 or 3 times I'll own one and can use the exact same reamer to rechamber every time I buy a new barrel. I'm a bit fussy about consistency though... Might just be me. Lol Mike
One man with a gun may control 100 others who have none.
Vladimir Lenin
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Re: shotgun barrel threading
[Re: Tactical.20]
#7211974
03/11/21 01:40 AM
03/11/21 01:40 AM
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Joined: Sep 2020
Posts: 943 Missouri
Osagian
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Thirty or more years of ago I sent my 870 to Bansners in pa to get modified, they changed chamber to 3", shortened the barrel, installed a long forcing tube for tight groups, turkey or predators, no more buckshot! 😆 Yep. Pressures are the same, and 870 2 3/4 and 3" receivers are the same, just a 1/4" difference on where they mounted the ejector on some of them, on some not. Must have been an engineering change back there sometime.
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