SA-20 in 3 gun

Discussion in 'Mossberg SA-20' started by BrianJ, Apr 14, 2014.

  1. Molon Labe

    Molon Labe .22LR

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    14
    Got the CHOATE 9 shot magazine extension mounted. Works great. Got the TruGlo fiber optic sight mounted. She likes it. Opened up the loading port just a little (maybe more later). Welded lifter is on the way. With just that minor opening of the port, she is now able to loads deuces.

    Results from my polishing the metal to metal parts making contact in the receiver. Much smoother bolt operation, and cycles Rem High Velocity 3/4 ounce loads just fine. She will be using 1 ounce loads (that I load), so it should "Run Like A Deere".

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    Djcala, Elbert Garrett and Rossignol like this.
  2. BrianJ

    BrianJ .223 Supporter

    Messages:
    113
    Nice job. Opening up the port where you did is exactly what I am looking to do. I don''t load deuces but when I try to load 4 shells fast, they hit the flat spot below the tube and stop.
    How much were you able to remove and how deep into the tube did you go?.
    I was also looking for a way to re-blacken the finish if possible. Any ideas.
  3. Molon Labe

    Molon Labe .22LR

    Messages:
    14
    Did not go very deep, on the first try. Going to let her run it like this a while, and she how she handles the loading. As for the finish, you could use on of those firearm touch-up pens with the flat black paint.
  4. Molon Labe

    Molon Labe .22LR

    Messages:
    14
    The SA-20 is running great. Even with custom 7/8 or factory 3/4 oz loads. It will cycle as fast as one can squeeze the trigger. Pretty sure we can even reduce handloads of the 7/8's even more. Began with 15.5 of 20/28 with a Claybuster wad, with #8 shot. Has plenty of pressure to cycle it. May try 15.0 grains next. The softer I can make the recoil, the more my wife will enjoy the shotgun bay, at our 3 Gun range.. Very very pleased with the little gun so far...

    DISCLAIMER: I do not suggest you use any load data that I may reference in my post. Always follow published data from the powder manufacture.
    Last edited: Apr 16, 2015
  5. oli700

    oli700 12g Supporter "Philanthropist"

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    9,145
    you guys are doing cool stuff with those SA20's, hell of a cool platform
  6. Molon Labe

    Molon Labe .22LR

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    14
    It's a work in progress! Hopefully she'll get to run it pretty hard at the range this weekend.

    My goal is too get the recoil very minimal, but still function 100%. Once it's broken in better, I feel confident that my goal can be obtained. Cause if she ain't happy, no one will be happy! LOL
    oli700 likes this.
  7. oli700

    oli700 12g Supporter "Philanthropist"

    Messages:
    9,145
    Awesome, sounds like fun . I bet you get what you want
  8. Molon Labe

    Molon Labe .22LR

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    14
    My wife got to give her new SA-20 Bantam a good run on our 3 Gun Range yesterday. The SA-20 ran flawlessly with our custom 7/8 oz handloads using 15.5grs of 20/28 and 7/8 oz of #8 shot. Loading duals is not and will never be as easy as with my 930 JM Pro, but not that bad. I did open the loading port up some more this morning, and now it's even a little easier. While at the bench, I loaded several loads at 13 grains of 20/28, and it still cycles as fast as one can squeeze the trigger. The recoil is now even less. The one issue that I still need to overcome is the stiffness of the bolt release button. It's tight, even too me. I've taken it a part, and gave all parts a good polishing, but still no where near as easy, as I'd like it too be.

    Overall, we're very pleased with the transformation of this entry level shotgun, into a nice reliable, 3 Gun shotgun.

    Attached are a few photos of the 2nd round of opening the loading port. This time I slightly open the sides, as well as going a little further forward. I feel with some practice using the 20 ga snap caps, she'll be doing just fine loading duals.

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    Last edited: Apr 19, 2015
    Elbert Garrett and oli700 like this.
  9. Molon Labe

    Molon Labe .22LR

    Messages:
    14
    8 month report.

    Running perfect! Guessing the round count is well over 1k now. Runs RIO, Federal, Rem, and my light re-loads flawlessly. Wife is very happy with the smoke-pole. She has no trouble taking out the same steel targets, at the same distances, as the folks with the 12ga noise makers.

    She's happy......

    [​IMG]
    Bobster, BrianJ and cmcdonald like this.
  10. Uspsp

    Uspsp Copper BB

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    1
    I'm confused here, if a remington 870 extension works why does choate list a different one for the sa-20?

    Last edited: May 24, 2016
  11. BrianJ

    BrianJ .223 Supporter

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    113
    Hello all. It's been a while. I did another 3 gun, Labor Day weekend in Pa. had a great time in spite of the leftover Harvey rain. This is my 3rd 3 Gun match. Great match, much bigger tan I thought included some Pros, Experts, High Marksmen. Don't think they'll have to worry about me catching them any time soon.
    SA - 20 ran fine at about 150 rounds in the rain.
    Hint: in the rain, the barrel generates a lot of steam in the rain, have to keep moving to even see the targets.
    If you get a chance to do a 3 Gun, just do it. Hopefully before you are old like me.
    Last edited: Sep 11, 2017
  12. Djcala

    Djcala 20g Supporter

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    721
    Congrats !!!! You were a winner in my book when you stepped to the line. Love people getting out there and compete in any of the shooting sports.
  13. BrianJ

    BrianJ .223 Supporter

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    113
    Great fun. A long day but more than worth it. Even in the rain.
    The 20 gauge had no problem with the steel targets even at 30 - 35 yards using low brass 7.5 shot.

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