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!st time at the range
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leestro2
Philadelphia
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September 4, 2019 - 3:29 pm
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Well I took my newly acquired 1978 DW 15 out to the range today it is very accurate but it was not shooting in DA seemed to be light primer strikes.  Now and again a round would work but most only in SA I know I’ve read they have a short hammer fall.  I sure hope it was the fact that I was using reloads that I buy from a local GS and not the gun.  I’ve used 9mm and .44 from the same place but they were different guns.  Does anyone have any input on the matter?

 

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Every man dies. few ever really live.....William Wallace

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snake-eye
Fort Myers, Florida
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September 5, 2019 - 1:11 pm
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A number of things can contribute to this problem. 

“Hard” primers is one. Probably the least likely answer.

A prior owner may have installed a less powerful mainspring in order to reduce trigger pull in DA. This will also result in lighter strikes on primers. If the primers are hard, the problem is amplified.

Excess cylinder movement front to rear is a likely cause especially on guns that have been fired a lot. Easily fixed by inserting shims in front of the cylinder.

There could be excess gunk impeding the movement of the firing pin. Worth checking & cleaning, but also less likely to be the problem. 

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leestro2
Philadelphia
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September 5, 2019 - 8:59 pm
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I found a whole load of people who have have had this problem.  Some of the stories I found were on this forum.  I did find the grip to be overtightened. I loosened that up a little and the this morning I returned to the gun shop where I bought it we went down the basement and he shot 18 rounds with no misfires.  As I said in the 1st post I was using reloads.  He used Winchester white box and it worked fine.  Hopefully it was just the reloads.  In retrospect I was also shooting my 9mm with reloads from the same person and every last shot was 3″ to the left of the bulls eye.  An H&K P2000 a gun that I’ve had no problem with in the past.  I’m no Bob Mundon but I can hit a BE at 10 yrs with a 9mm.  No more Mordern Munitions reloads for me!

 

Lee

Every man dies. few ever really live.....William Wallace

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guilddon
North Carolina
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March 31, 2020 - 2:26 pm
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Had the same issue with my first Dan back in the mid 80’s, but only on 3 cylinders. I contacted Dan Wesson, sent it to them and they fixed it.   My current Dan is Stainless (both 357) and does not have the issue.

Reloads.  If you do some research you will find the CCI primers have a thicker cover than the Winchester or Fed. and this caused problems in my first DW.  Following is from memory from 35 yrs ago, I think there is an adjustment on the hammer fall pressure ????  Just googled it, there is an adjustment on the trigger pull, this might effect the hammer.  

I also had an issue with the primers not be seated all the way in, round would not fire the first time but would the second strike.  

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hugelk
Northern Illinois
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March 31, 2020 - 5:06 pm
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Hello,

There is not any adjustment for ” hammer Fall”   The trigger adjustment is an over travel setting which does not affect the hammer force or amount of trigger pull. It enhances faster , more accurate follow up shots.

If the firearm is dirty inside it will require more force to move the action and hammer. I suggest a good cleaning and using reloads from another source. A weak mainspring is always a possibility too…..Good Luck

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photohause
Sebastian, FL
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April 1, 2020 - 5:50 pm
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 If you're going to drink, don't drive. Don't even putt. 

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