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dewey · December 16, 2001, 05:03 PM

Hello-
Took apart my 640 and did the usual slicking of slide and deburring of frame . Also smoothed the sides of trigger,hammer and took 1 1/2 turns off the rebound spring and hammer spring. HOW FAR can I go removing turns on the hammer spring? I don't have a spare....THANKS...dewey

December 16, 2001, 05:03 PM	#1
dewey Senior Member Join Date: December 22, 1999 Location: South East Posts: 399	S&W M40/640 action job Hello- Took apart my 640 and did the usual slicking of slide and deburring of frame . Also smoothed the sides of trigger,hammer and took 1 1/2 turns off the rebound spring and hammer spring. HOW FAR can I go removing turns on the hammer spring? I don't have a spare....THANKS...dewey