Originally Posted by
Ned Christiansen
To give you a lighter trigger pull. Obviously you get a weaker hammer fall; maybe "less strong" would be better because I can't say misfires become chronic. But there's a whole sub-science where some high-end competitors will go lighter on the recoil spring and heavier on the mainspring to reduce forward-stroke movement while the heavier mainspring still modulates the back stroke. I have not really delved into this and not sure I'm sensitive enough to really notice the effect.
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