Unfortunately a previous owner dicked around with the trigger on my 586 and there is no adjustment left on the strain screw and the return and mainspring are a little light. The CCI primers are a little harder than the federal ones and lately I noticed a few soft strikes. Here is a quick video of my 586 and how I got a little more tension on preventing the soft strikes. I have a new set of springs coming in the mail, but until that time this little trick maybe helpful using a spent primer to shim the mainspring. Check it out.
My 586 was getting soft primers strikes using CCI Primers
- Thread starter Don'tkillbill
- Start date
Cocked&Locked
CGN Ultra frequent flyer
- Location
- S. Ontario
FYI, there should be no adjustment in the strain screw, it should always be full tight. Folk who back it off "tuning" for a lighter trigger pull are merely asking for light strikes. If you want a lighter trigger pull you work with the mainspring and rebound spring. Probably the previous owner either bent, thinned the width on, or slightly tempered the existing spring to lighten it, leaving you with an unreliable strike. Glad to hear you've got a new spring on the way, the shimming idea for the short term is fair way to keep shooting. well done. You won't need to replace the rebound spring (the one inside the block) unless you find that when your shooting very fast in double action, that you can over speed the cylinder. Might as well leave it in and try it, the lighter it is, the nicer your trigger pull will be. If you don't shoot rapid DA (as in IPSC or IDPA fast) you'll never notice it.
One way to adjust the strain screw used by some misguided folks is to file them down. Your picture makes the arc of the mainspring look a bit "lazy". So I'd not be surprised if such a thing was done to your screw. The slick and easy way out of this issue if you reload is to grab a spent primer and use a pick to remove the anvil then a larger size punch to flatten the pin dimple and then put the resulting "cup" over the end of the strain screw and tighten it. The shim provided by the primer cup should make enough of a difference.
The other thing is to flush out the sides of the hammer with some brake cleaner and oil with a LIGHT oil so there's not a lot of viscous drag on the sides of the hammer within the frame.
The other thing is to flush out the sides of the hammer with some brake cleaner and oil with a LIGHT oil so there's not a lot of viscous drag on the sides of the hammer within the frame.
