I just returned from the range with my 66-2 that I recently acquired and I had trouble with misfires with some of the rounds in each cylinder of ammo I put through whether in single or double action mode. Several rounds required cycling back through before they went off. I also had the trigger stick back after one round. The primers look like they are being struck but I assume maybe not hard enough the first time. I'm an experienced handloader and have not encountered this issue with any of my other guns. Is there an adjustment for this. Any help would be appreciated.
Model 66-2 not detonating primers
- Thread starter dsen
- Start date
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First thing is to make sure the strain screw (on the bottom front of the grip frame) is tight. It should be.
if it is, there's a possibility that bubba shortened it to lighten the trigger. You can make a shim out of the cup of a fired large primer to fit over the tip and shim it up a bit.
if it is, there's a possibility that bubba shortened it to lighten the trigger. You can make a shim out of the cup of a fired large primer to fit over the tip and shim it up a bit.
Imshootin
Member
Take your grips off. There's a screw on the front of grip frame. This is called the strain screw. Tighten it in all the way and see what you get.
You didn't mention if your ammo was factory or hand loaded.
If ammo is hand-loaded improperly sometimes the primers aren't seated as deeply as they should be. If not seated all the way into the primer pocket the primer moves forward when the firing pin strikes it, cushioning the impact necessary to strike the primer anvil which in turn ignites the powder.
Nine times out of 10 it is one of the easily solvable mechanical issues others have mentioned or a hand-loading problem. You'll get it worked out...
If ammo is hand-loaded improperly sometimes the primers aren't seated as deeply as they should be. If not seated all the way into the primer pocket the primer moves forward when the firing pin strikes it, cushioning the impact necessary to strike the primer anvil which in turn ignites the powder.
Nine times out of 10 it is one of the easily solvable mechanical issues others have mentioned or a hand-loading problem. You'll get it worked out...
I had the exact same problem on my new to me 66-2.
Take the grips off and check that main spring screw. It will be at the very bottom of the frame on the front side.
Mine was backed out about 1/8"....once tightened....everything I've put through it has fired.
I'm betting that is your problem.
Take the grips off and check that main spring screw. It will be at the very bottom of the frame on the front side.
Mine was backed out about 1/8"....once tightened....everything I've put through it has fired.
I'm betting that is your problem.
My son had this problem with a used 686. In his case the hammer spring had been bent to lighten the trigger pull. A new spring solved the problem.
It is not uncommon for would be gun smiths to attempt "trigger jobs" in this manner.
It is not uncommon for would be gun smiths to attempt "trigger jobs" in this manner.
