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S&W model 58

varianvarian Member Posts: 2,250 ✭✭✭✭
edited March 2016 in Ask the Experts
what is the proper tension on the screw in the front of the grip strap bears on the mainspring. thanks in advance model 58-2

Comments

  • TANK78ZTANK78Z Member Posts: 1,320 ✭✭✭
    edited November -1
    You tighten it firmly down, thats the way its designed to work.
    Never loosen or back it out to "lighten the trigger"
  • charliemeyer007charliemeyer007 Member Posts: 6,579 ✭✭✭
    edited November -1
    That is the factory's position.
  • varianvarian Member Posts: 2,250 ✭✭✭✭
    edited November -1
    thanks needless to say that is not the way it was
  • tsr1965tsr1965 Member Posts: 8,682 ✭✭
    edited November -1
    Yes, they need to be tightened down firmly, all the way. if it is turned out, you will decrease pressure on the spring, and possibly get some light hits.
  • CapnMidnightCapnMidnight Member Posts: 8,520
    edited November -1
    Strain screw, and yes, tighten it down if you want it to shoot every time.
    W.D.
  • dfletcherdfletcher Member Posts: 8,162 ✭✭✭
    edited November -1
    Just because the strain screw is tightened doesn't mean all is well. On occasion folks heed the "tighten the strain screw" advice but shorten the length of the strain screw. Make sure the strain screw is full length. The end of it should be squared off and blued.
  • SP45SP45 Member Posts: 1,758 ✭✭✭
    edited November -1
    Adjusting the power for the hammer spring (or main spring) was done in various ways. no matter which method you use the strain screw should be all the way in or bottomed out. Some departments used to stake them in so they wouldn't work their way out after many thousands of rounds. The factory had a little gauge that you could measure the tension in pounds. I forgot what their minimum was. Of course people making a target or strictly competition gun might adjust it lighter. Someone made a rod that was weighted and you would cock the hammer and drop the rod down the barrel and fire the gun (unloaded of course) and the rod would have to move a certain distance to meet the requirements. I don't recall who made the rod but you might call the factory or armorers school and they could help.
  • TxsTxs Member Posts: 18,801
    edited November -1
    An issue since this design has existed.

    Bubba doesn't quite grasp that this screw exists only for disassembly/assembly purposes, not 'adjustment'.
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