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  1. Darth

    My SA-20 Changes and Fixes

    No ... I really don't. I'm left handed but I shoot right handed so I never considered it. I just learned to do it that way ... sorry. Darth
  2. Darth

    My SA-20 Changes and Fixes

    60cj6, sorry ... I don't have any measurements on the springs I used in the "buttons" area. I got them from my "spring box". All I did was pick a spring that was slightly less (about .002") in wire diameter, same length and equal or greater number of coils. I'm sure you could find some at the...
  3. Darth

    My SA-20 Changes and Fixes

    Well, I shot this thing today and it “kinda” cycled the 7/8 oz loads. Half of them worked OK and the other half “stove piped”. I still think I need to reduce the cocking effort a wee bit more … somehow. I did take 1 oz loads with me this time … they work just fine. I shot the 1 oz loads with...
  4. Darth

    My SA-20 Changes and Fixes

    I received the new spring today and it fits over the magazine tube as expected. It is shorter by 1.75". I measured the "cocking effort" and the results are as follows: Effort with original spring = 17 lbs Effort with new spring = 15.5 lbs That is a total of 1.5 lbs reduction, that might be...
  5. Darth

    My SA-20 Changes and Fixes

    Well I finally shot this thing. After all the polishing I did on this thing, I was confident that it would cycle 7/8 oz low brass shells … well it didn’t, and I was so confident that I didn’t take any 1 oz loads with me … silly me. It almost cycled two of them. So I am wondering if they used...
  6. Darth

    Locktite and “bolt pin” retention

    Gotcha ... :D I thought that's where you were leading ... Darth
  7. Darth

    Locktite and “bolt pin” retention

    When you say "work it" ... what do you mean exactly ... I could heat it up with a heat gun and then see how tight the pin is retained ... Darth
  8. Darth

    Locktite and “bolt pin” retention

    yea, I thought about that ... but the service temperature of the blue Loctite is -65 F to 300 F. If I get that bolt up to 300 F ... I think I have another problem. Darth
  9. Darth

    Locktite and “bolt pin” retention

    Locktite and “bolt pin” retention I recently had to grind out the “factory staking” that retained two pins in the bolt (SA-20) that I was working on. I didn’t want to “re-stake” the pins afterwards because I might want to take it apart at some future date and grinding out the stakes is a...
  10. Darth

    My SA-20 Changes and Fixes

    Well, last night I installed a lighter spring under the "slide release button" as well. The whole thing is much easier to operate now ... and it's easier to remove "unfired shells". So, just to re-cap the whole thing ... I have replaced BOTH springs in the slide release mechanism. I also...
  11. Darth

    SA 20 barrel needs threaded

    I've never had a barrel threaded ... or dealt with Aimpro, but I would just hang in there a little bit for them. They "appear" to be Mossberg specialists. That's where I would have went ... not knowing. Darth
  12. Darth

    Hunting

    Well, I bought mine because I'll be going Chukar hunting next month and I wanted a semi-auto. So ... if it all turns out ... I'll let you know. Darth
  13. Darth

    My SA-20 Changes and Fixes

    Another thing you can do is polish the areas in the red circles. On the far left is the ramp that sets the "elevator" as the action bar travels backwards, I polished the area (ramp) behind it as well. In the middle is the ramp that cocks the hammer, this is an important one because after the...
  14. Darth

    My SA-20 Changes and Fixes

    Thanks for the Welcome ... Perhaps I am YOUR Father ... :o Darth
  15. Darth

    My SA-20 Changes and Fixes

    Thanks ... but I would just drive them nuts I think ... and the guns would cost 3 times as much. :D I think it's silly about the magazine tube, one other guy I was talking to tried to get his out, and he couldn't either ... and he's a retired gunsmith !! He ended up doing a different version...
  16. Darth

    My SA-20 Changes and Fixes

    Slide release modification I have read that the slide release buttons on these things were hard to push, my slide release button was no exception. After examining "how this thing works", I discovered that the piece in the red circle on the left simply "stops" the elevator from raising, thus...
  17. Darth

    My SA-20 Changes and Fixes

    My Magazine tube “Fix” This is how I built a retention system after I filed off the original ridge. If you look close, you can see the retaining wire on top of the steel washer in the magazine tube. The wire is .029 music wire with a small "hook" on each end. I drilled .035 diameter holes into...
  18. Darth

    My SA-20 Changes and Fixes

    Hello all, I'm new here. I was in the market for a semi-auto 20ga shotgun and, as I was searching, ran across very few reviews of the SA-20 ... well good ones that had any meat to them. I did find one that was very good. The fellow actually went into good detail. So I thought I would join here...
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