I've done trigger jobs on at least a dozen post 64 m70s made from the mid 1970s to the early 2000s. Using the factory trigger return spring(and checking with an accurate trigger pull gauge), I was never able to get SAFE sub 3.5lb on any of them
I went and measured the pulls on my 2 favorite M-70's. One a Pre-64 and the other a newer model "Classic" claw feed.
Both will not go off dropped from waist height onto a carpeted surface, both will withstand any amount of hard bolt movement without going off. They pass the safety tests I can reasonably do.
Neither has had the springs replaced.
The Pre-64 was 3.0lbs and the Classic was 2lbs 14oz's.
Not to make too fine a point here but if Brad, Savage99, Blackdog1 and others all can get theirs easily adjusted to 3lbs or less and you can't, maybe the triggers aren't the problem............................dj
