Originally Posted by
La26
When we used to carry revolvers on duty, one of the "great ideas" to reduce double action trigger pull was to loosen the strain screw. BAD IDEA!! It is not an adjustment screw, it is supposed to be tightened down all the way. When the armorer told certain officers to keep them tightened all the way, some closet gunsmiths decided to removed the mainspring, bend it near the top with a little kink in it, then re-install. This also reduced the double-action pull on the trigger. HOWEVER, this resulted in even more "light hits" on the primer, and misfires.
SO, if OP found his strain screw was cut to reduce the length, it is also possible the original spring was bent (purposely) to help reduce trigger pull by the same "gunsmith" that cut his screw. I have never seen an unaltered mainspring lose it's power and need to be replaced due to age. The original mainspring in my Model 66 (no dashes) is still good as new, as is the one in my model 15 (50 years old).
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