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Change a 1100 2 3/4 into a 3"

Discussion in 'Shooting Related Threads' started by 682b, Nov 11, 2012.

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  1. 682b

    682b Member

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    Got a call from a friend completing on using a 1100 to hunt with. He wanted to know what he needed to do to shoot 3” shells. I told him he needed a 3" barrel and a magnum recoil buffer but I was not sure of any other changes he should make. I looked in Kunhousers book and did not see anything. He has a Hastings Steel shot mag. barrel with a oversized gas port for steel shot and it has a I.C. Choke in it. Any one want to way in on this topic. Thanks in advance. Jim
     
  2. ntgr8

    ntgr8 Member

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    Change a 1100 2 3/4 into a 3

    I think the ejection port is same for 2 3/4 and 3 inch. Just put the barrel on and it will shoot 3's, don't know if it cause any problems down the road.
     
  3. bigbore613

    bigbore613 Active Member

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    Change a 1100 2 3/4 into a 3

    Put it on and shoot it. Jeff
     
  4. Tripod

    Tripod Well-Known Member

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    Change a 1100 2 3/4 into a 3

    The action bar on the magnum models is heavier than the 2 3/4" guns as well as the magnum barrel being chambered for 3" shells and a singular gas port. I believe everything else is the same.
     
  5. Brian in Oregon

    Brian in Oregon Well-Known Member

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    Change a 1100 2 3/4 into a 3

    Jim, yes, that's the way to do it.

    Except possibly the very earliest receivers, which are said to not be convertible to 3" but I have yet to find the reason why, a 2-3/4" gun can be converted to 3".

    This is going to require a heavier action sleeve. The action sleeve is the hollow cylinder that moves forward and back on the mag tube.

    The increased mass of the 3" magnum action sleeve slows down the bolt velocity moving rearward. The combination of the lighter action sleeve and magnum loads results in the bolt slamming hard into the back of the receiver, which can and will result in damaging parts and eventually cracking the receiver.

    Remington made a 3" steel shot barrel that they approved for use on both 2-3/4" actions and 3" actions. But there was an explicit warning for 2-3/4" guns due to the lighter action sleeve. Only 3" steel shot could be used, not 3" lead. The latter would result in high bolt velocity, as I outlined above.

    The question is, where can he get a magnum action sleeve? I don't know if Remington has them anymore. And the 1187 action sleeve won't work. It's the same as the 1100 2-3/4". I'd suggest checking with Remington but you might also consider putting a WTB ad here.
     
  6. tanda1

    tanda1 Active Member

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    Change a 1100 2 3/4 into a 3

    A 1 1/4 oz of anything fired at comparable velocities will exert the same forces on the internal parts of an 1100 whether they were released from a 2 3/4" or 3" shell.

    If its steel he is shooting,as said above: Put it on and shoot it.
     
  7. superxjeff

    superxjeff Active Member

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    Change a 1100 2 3/4 into a 3

    Many moons ago, my 2 3/4" 1100 was feed a steady diet of 1 1/2oz lead, 2 3/4's. Its still shooting.
    Tanda1? what is your point? Your 2 3/4 inch 1100 was built to shoot 2 3/4 inch 1 1/2 loads? Why wouldn't it still be shooting?

    I guess you might be thinking that most 3 inch steel loads are 1 1/4? So what would the diffrence be?

    Remington made a diffrent action sleeve for some reason.

    I would install one if I was ever going to shoot a lead 3 inch shell.

    It make sense that a 3 inch 1 1/4 steel load should not be an overload for the 2 3/4 inch action sleeve but the proof willl be in the shooting.Jeff
     
  8. Psycho

    Psycho TS Member

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    Change a 1100 2 3/4 into a 3

    Location of Ejector.
     
  9. glenfish

    glenfish Member

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    Change a 1100 2 3/4 into a 3

    Shot an older 1100 2 3/4 in gun with a 3 in bbl. for years. Shot only steel but never had any trouble.
     
  10. LUGNUTZ426

    LUGNUTZ426 TS Member

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    Change a 1100 2 3/4 into a 3

    ejector is the same on 1100's. 870's have receiver mounted ejector spring riveted back 1/4 inch further on 3" magnums.
     
  11. tracyhunter

    tracyhunter Member

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    Change a 1100 2 3/4 into a 3

    there is a 1100 on gun broker for $399.00.buy it now.might be cheaper than buying parts to make yours shoot 3".
     
  12. superxjeff

    superxjeff Active Member

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    Change a 1100 2 3/4 into a 3

    doggai, You must realy hate those turkeys! I use my 10ga auto as it kicks less then the 12ga 3 inch turkey loads. Those 12ga loads really thump. Jeff
     
  13. 121083

    121083 Member

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    Change a 1100 2 3/4 into a 3

    Change out the action sleeve to a magnum action sleeve and that is all the difference. Numrich has the old style original magnum sleeves for $44 or order part number F200565 from Remington at $35. This is the action sleeve for an 11-87 super magnum and is the same. Have used both.
     
  14. bigbore613

    bigbore613 Active Member

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    Change a 1100 2 3/4 into a 3

    Here is a question, if a 1187 uses the regular sleeve and shoots 2 3/4 or 3 inch. Whats the difference in an 1100? In my opinion, nothing. With that said why do you need to change the sleeve? In my opinion having shot heavy payload Bismuth and heavy shot for nearly two decades through my 1100 with an 1187 barrel changing nothing and no problems.I do religously check the action spring, and have replaced it several times. I do not shoot the 2oz turkey loads,don't need them. Jeff
     
  15. skeet_man

    skeet_man Well-Known Member

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    Change a 1100 2 3/4 into a 3

    Jeff- Not quite. The 1187 is factory CHAMBERED for 3", the 1100 non-magnum is NOT. The 1187 has a compensation system build into the gas collar to bleed off excessive gas when shooting heavy shells, the 1100 (magnum or not) does not.

    Now if you use a 1187 barrel on a 1100, you should theoretically be fine with 3" magnum shells, but that would be the only way, unless you use the magnum action sleeve and a magnum 1100 barrel.
     
  16. bigbore613

    bigbore613 Active Member

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    Change a 1100 2 3/4 into a 3

    You dont get the point, a 1187 is just a 1100 with a stainless mag tube. Remington got it to work with light and heavy loads by using the light action sleeve and two ports in the barrel,like the 2 3/4 1100.There is no magic gas system for the 1187 it simply has two ports.Ask Jay Bunting,HE knows what is correct. Jeff
     
  17. skeet_man

    skeet_man Well-Known Member

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    Change a 1100 2 3/4 into a 3

    The 1187 has 4 gas ports, two that direct gas toward the action sleeve to function the gun, and two that vent excessive gas, which are covered by a spring, which vents the proper amount of gas.

    This is a pic of the spring which covers the outer ports:
    <a href="http://smg.photobucket.com/albums/v292/Skeet_Man/?action=view&current=imagesqtbnANd9GcRdxtzdu0HXVjo2rVj5j.jpg" target="_blank">[​IMG]</a>

    The 1187 is not just an 1100 with a stainless magazine.
     
  18. bigbore613

    bigbore613 Active Member

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    Change a 1100 2 3/4 into a 3

    LOL , that was the first style of barrel ,no longer used.The movable ring was used so the barrel could not be used on a 1100 when it came out. What you do not show is the stamped metal ring that contains the old style gas system you show.With the ring in place you cannot get an original 1100 forearm over the 1187 barrel and ring. If you try to use it without the stamped ring the band moves forward stopping function. It was used to stop consumers from putting 1187 barrels on 1100 guns and only for that reason. I simply weld it up.The mew ones dont have it. Jeff
     
  19. skeet_man

    skeet_man Well-Known Member

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    Change a 1100 2 3/4 into a 3

    That is EXACTLY the same style gas cylinder currently used on the 1187 line. My dad has a 1187 Sportsman Synthetic (current generation) that has that exact system. I also worked on an 1187 Sportman that is less than 6 months old (purchased brand new at Dicks) that has the exact same design. It has NOT been discontinued. The 1187 TARGET (trap and skeet) barrels did not have the gas bleed feature, which may be where you are confused. They were designed for TARGET loads only. The 1187 SLUG barrels don't have a gas bleed system either, since the gas ports are bored for heavy loads anyways.

    The gas cylinder collar "stamped metal ring" was installed to prevent the spring from opening too much (it limited the amount it could flex/open). It had NOTHING to do with preventing the interchange of barrels, it was simply a necessity of the gas-bleed design. It did keep you from using an 1100 forend with an 1187 barrel, but as long as you mated the 1187 barrel with an 1187 forend, you were fine. This would in NO WAY prevent someone from using an 1187 barrel on an 1100, only make it slightly less convenient.

    The newest generation of SYNTHETIC 1187s don't have the gas cylinder collar. The synthetic forend is designed in such a way as to allow the forend itself to take the place of the collar and limit the springs movement.
     
  20. skeet_man

    skeet_man Well-Known Member

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    Change a 1100 2 3/4 into a 3

    You could also use the 1187 TARGET and SLUG barrels on an 1100, WITH AN 1100 FOREND with no issue, since they didn't require the use of the gas cylinder collar. So much for the interchange prevention angle.
     
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