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February 21, 2011
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Hi folks I'm new here & have a 15-2 in .357 with a problem.
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I've only noticed this in double action, but as it is a new problem it may happen in single action as well & I just haven't had the problem in that mode.
Out of 50 rounds fired DA I had 3 light strikes with an FTF as a result. All 3 rounds fired normally when re-struck with a second attempt.
The firing pin impact points were all in the center of the primer the only variable being the force of impact & the denting of the primer.
I did a search on here & discovered the grip screw issue, & as I have recently removed & replaced the grip that is what I think is the best candidate as the problerm did not happen till after I did that.
The firing pin is free moving & the area around it is clean, the gun is well-maintained. The bullets were hand loads & I did check for primer seating I also clean the primer pockets each time I reload so I don't think the primer or the reload is the issue.
The grip screw in my grip does have the washer, which is a tight fit in the grip bore hole, so can I just add a washer or two as spacers to prevent the over protrusion of the grip screw, or am I just going to add a second problem on top of the first?
Thanks in advance for any help you can give.
Matthew Quigley on handguns:
“I said I never had much use for one. Never said
I didn't know how to use it.”
Dans Club
March 2, 2008
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You might try backing that grip screw off a few turns and see if that solves the problem. If it is solved, and the grip is not loose and wobbly, leave it as is. If the grip is loose, go ahead and stack a washer on the screw to hold it firmly, without over extending the grip screw.
BTW- beautiful 15-2, that grip is gorgeous.
I went to a bookstore and asked the saleswoman "Were is the Self Help Section?" She said if she told me, it would defeat the purpose.
George Carlin
February 21, 2011
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Thanks, Steve.
All the slack I have is about 1 1/2 turns, before the grip is slack, which is why I'm thinking about either shortening the screw a little, or adding washers.
Matthew Quigley on handguns:
“I said I never had much use for one. Never said
I didn't know how to use it.”
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Range Officers
May 2, 2009
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mister callan said:
Thanks, Steve.
All the slack I have is about 1 1/2 turns, before the grip is slack, which is why I'm thinking about either shortening the screw a little, or adding washers.
Unless you have more than 10 threads of screw engagement, your screw is fine. Anything more than 10 threads and you'll need to get a shorter screw.
SHOOT
September 26, 2010
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I test with a pencil, with the muzzle up (do I need to say unloaded) place a pencil resting on the firing pin and dry fire it. The pencil should jump a few inches if everything is working correctly. I have some Dans that the pencil clears an eight inch barrel. To check double action do it with the cylinder open. You can do this test with the grips on and off to see if you have any difference.
February 21, 2011
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SHOOTIST357 said:
mister callan said:
Thanks, Steve.
All the slack I have is about 1 1/2 turns, before the grip is slack, which is why I'm thinking about either shortening the screw a little, or adding washers.
Unless you have more than 10 threads of screw engagement, your screw is fine. Anything more than 10 threads and you'll need to get a shorter screw.
SHOOT
So you mean that I should have 10 turns after the thread "bites" correct?
I'm curious why I'd replace the screw rather than just add a washer or two? The amount I need to take up seems minimal, as I don't think I did anything massively different this time when I tightened the screw.
Actually where do I get a short screw & how do I specify the length?
Matthew Quigley on handguns:
“I said I never had much use for one. Never said
I didn't know how to use it.”
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Range Officer
Range Officers
May 2, 2009
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Yes, max of 10 turns after it makes contact and bites. You can use washers, but I usually find it easier to go to the hardware and buy a shorter screw than search for small washers that fit properly.
Long screws are 1.5 inches, and the shorter screws are usually 1.25 inches. You only need about 3 or 4 threads for full strength, so getting up around 10 turns is truly overkill.
SHOOT
February 21, 2011
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I'm actually lucky, I have both flat & lock washers of the correct size handy
.
I checked this screw against one from a different grip & there is a slight difference the "other" one being a little shorter (nowhere near 1/4" though.)
So I fitted a lock washer next to the head, a flat below that & then the factory one.
Hopefully that will ensure good clearance & I still have 5~6 turns to keep everything together.
The pencil test was interesting............I only got about a 1 1/4" lift, but consistant even with the grip removed. Next time at the range will tell. Thanks folks.
Matthew Quigley on handguns:
“I said I never had much use for one. Never said
I didn't know how to use it.”
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