Up date on S&W model 14
A couple weeks ago I asked a question regarding a single action only S&W model 14 that I assumed was converted from DA/SA to SA only.Several of you informed me that S&W made some models that way.I purchased the revolver and it had a 1/2" spur on the hammer and the same sized trigger shoe,large walnut grips,and target sights,the price was well under 300.00 so I picked up a new hammer at a reasonable price and had it installed. MY PROBLEM is when fired double action the firing pin doesn't hit the primer hard enough to fire,just leaves a faint mark,but in S/A it shoots great.What am I missing?
Is there another part that needs changing? Many thanks
Is there another part that needs changing? Many thanks
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DBuesching,
The main spring in your S&W 14 is a flat spring so I doubt that is the problem.
Sounds to me like something is not fit properly in the hammer block safety widget.
Why not call Smith & Wesson customer service at 1 800 331 0852
Mon - Fri 8 to 8 EST. They are the real experts on all things "Smith".
Jim0 -
"The main spring in your S&W 14 is a flat spring so I doubt that is the problem."................or the main spring STRAIN screw is backed out (bottom front of the grip frame) 0 -
quote:Originally posted by MIKE WISKEY
"The main spring in your S&W 14 is a flat spring so I doubt that is the problem."................or the main spring STRAIN screw is backed out (bottom front of the grip frame)
+1
I've seen this exact problem before in a Smith revolver that had the strain screw loosened, namely 100% function with single action, but random misfires in double-action.
I don't know why exactly, but the hammer seems to fall "harder" from single action than from double-action.
Easy thing to check. . .just try tightening the strain screw.
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As suggested make certain the mainspring strain screw is fully screwed in. I've seen some that were shortened so they'd be tight but give a lighter pull, ensure yours has not been shortened.
Remove the grips, the strain screw is on the bottom front of the grip frame. Turn it in all the way.
If your M14 was an untouched original SA only the hammer will not be cut for the DA sear and sear pin hole. Hopefully your gunsmith handed that part back to you.0 -
In addition to checking that the strain screw is scrwed in all the way and that it hasent been shortened check the main spring as well. Way back on competition guns they would take material of the width of the main spring on both sides. It doesnt happen very often but it is easy to miss. If the strain screw is all the way in and the spring hasen't been messed with and you still have missfires you probably just need the proper strain screw. If that doesn't work then you need to look at end shake issues. 0 -
Update, I removed the strain screw and it does not appear the have been shortened,I even tried a .020 copper shim between the screw and the spring,still no help. The gunsmith is as curious as I am and wants to go over it again after the holidays, I'll keep you all updated. thanks 0 -
I almost forgot, the original hammer does not have the DA sear and pin hole and the gunsmith gave me the old part back. 0 -
try extra power mainspring from brownells.it is an inexpensive experiment 0 -
quote:Originally posted by beantownshootah
quote:Originally posted by MIKE WISKEY
"The main spring in your S&W 14 is a flat spring so I doubt that is the problem."................or the main spring STRAIN screw is backed out (bottom front of the grip frame)
+1
I don't know why exactly, but the hammer seems to fall "harder" from single action than from double-action.
The reason is the hammer is farther back when cocked in single action than when cycled in double action. Grab any Smith, look at it from the side and note where the hammer is when fully cocked and released, then pull the trigger double action and you will see it releases noticeably forward of the cocked position.0 -
quote:Originally posted by Laredo Lefty
quote:Originally posted by beantownshootah
quote:Originally posted by MIKE WISKEY
"The main spring in your S&W 14 is a flat spring so I doubt that is the problem."................or the main spring STRAIN screw is backed out (bottom front of the grip frame)
+1
I don't know why exactly, but the hammer seems to fall "harder" from single action than from double-action.
The reason is the hammer is farther back when cocked in single action than when cycled in double action. Grab any Smith, look at it from the side and note where the hammer is when fully cocked and released, then pull the trigger double action and you will see it releases noticeably forward of the cocked position.
Damn - I think you nailed it, the SA fall being longer doesn't need as strong a mainspring, so the SA mainspring lacks the power to ignite primers when used in DA mode. Those sneaky little so & so's at Smith, thinking of every angle. So a plain old Smith mainspring from Brownells or Midway should do the trick.
Son of a gun, I wish I came up with that answer. [V]0
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