Quantcast

Accu Choke ID

Discussion in 'Shotguns' started by tws3b2, Jul 24, 2020.

  1. tws3b2

    tws3b2 Member

    Joined:
    Jul 21, 2019
    Messages:
    233
    Location:
    Asheboro NC
    I picked up a Mossberg 500 with a 18 1/2 barrel installed and a extra 28" barrel. I noticed the 28" is marked Accu choke and just got to wondering if there is a way to tell which choke is installed without removing it.
     
  2. George P

    George P Member

    Joined:
    Jan 10, 2018
    Messages:
    5,846
    If there are no thin notches, then no; take a choke tube wrench and unscrew it - it will laser etched on the sidewall of the choke. Personally, one of the reasons I like extended chokes is because it is easy to tell what is on the barrel.
     
  3. tws3b2

    tws3b2 Member

    Joined:
    Jul 21, 2019
    Messages:
    233
    Location:
    Asheboro NC
    Only two notches. I assume for the wrench.
     
  4. cdb1

    cdb1 Member

    Joined:
    Jan 27, 2012
    Messages:
    4,475
    Location:
    Justin, TX
    Yep, the main reason I buy extended chokes is for the same reason as George P and because they protect the crown of the barrel.

    tws3b2, if the shotgun and barrels are OEM NIB from Mossberg there’s about a 99% chance the choke in the 28” barrel is modified.

    In addition if you want to purchase another choke, the Accu-Choke system interchanges with Invector chokes, not Invector Plus but regular Invector.
     
    George P likes this.
  5. cdb1

    cdb1 Member

    Joined:
    Jan 27, 2012
    Messages:
    4,475
    Location:
    Justin, TX
    Yes.
     
  6. tws3b2

    tws3b2 Member

    Joined:
    Jul 21, 2019
    Messages:
    233
    Location:
    Asheboro NC
    Dumb question. Assuming it is modified, Could a slug be safely fired through it. Make that two dumb questions. If the choke was removed??
     
  7. cdb1

    cdb1 Member

    Joined:
    Jan 27, 2012
    Messages:
    4,475
    Location:
    Justin, TX
    If you are talking specifically about the 28” field barrel absolutely do not ever shoot it with any type of shell without a choke tube installed.

    Someone else will chime in but if I remember correctly it’s okay to shoot slugs through a modified choked barrel.

    Use the short barrel for slugs. It should be cylinder choked.
     
  8. cdb1

    cdb1 Member

    Joined:
    Jan 27, 2012
    Messages:
    4,475
    Location:
    Justin, TX
    I’m assuming the 18.5” barrel is not rifled because I think their rifle barrels are longer. If the barrel is smooth, don’t use sabot slugs. If it is rifled then use sabot slugs.
     
    Last edited: Jul 24, 2020
  9. George P

    George P Member

    Joined:
    Jan 10, 2018
    Messages:
    5,846
    NEVER shoot through that barrel without SOME choke tube in it. There are plenty of folks who make aftermarket chokes; Trulock and Carlson make good ones at reasonable prices. I prefer both Briley and Trulock the most. Wrenches are readily available. You DO need to remove the choke after shooting to clean the threads on both the tube and the barrel and then lube those threads with either some oil or grease.

    Slugs of the Foster type can be safely fired through a M choke or more open. Most folks seems to get the best accuracy with something along the lines of an IC (Improved cylinder)
     
  10. rdnktrkr

    rdnktrkr Member

    Joined:
    May 24, 2014
    Messages:
    833
    Location:
    Atlanta GA
    You can use a Quarter if you don't have a wrench. Look on ebay for chokes, sometimes you can find them at good prices. I use anti-seize on the threads of all my chokes
     
    tws3b2 likes this.
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice