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itsray

Mainspring shortening

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How, or rather what is the best method to shorten a mainspring and reshape its end?

I hope to shorten one to partially remove the 33mm pre-load which is making it a harsh rifle to shoot.

It currently has 34 coils of 3mm wire, is 270 long, external 18.8, internal 12.8.

I also intend to buy a new standard one just in case.........

Cheers

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