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Mainspring housing....why I'd need to replace spring?

This is a discussion on Mainspring housing....why I'd need to replace spring? within the Ruger Rimfires forums, part of the Pistol & Revolver Forum category; Was looking at a great sticky on RFC by SGW Gunsmith about polishing/cleaning the innards of the mainspring housing. Folks...tell me this: What is to ...


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Old March 14th, 2017, 08:41 AM   #1
 
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Mainspring housing....why I'd need to replace spring?

Was looking at a great sticky on RFC by SGW Gunsmith about polishing/cleaning the innards of the mainspring housing.

Folks...tell me this: What is to be gained by replacing my mainspring with a heavier/lighter spring from Wolff or other??? I have 4 Rugers, including one that's 50 yrs old and a couple that are 20+ years old. I understand the intricities of the firing process, but I don't know what, if anything, is to be gained by swapping out the springs for a different strength, or even replacing the old one in my Mark I. I don't know if I'd notice any degradation of that spring vs a new one.

I'd love some info on this. I can't quite mentally picture how reducing or increasing that spring strengh will affect my trigger action. If anyone can opine on this, I thank you.

(This is what happens when you're snowed in, have polished your pistols and start tinkering)

bob



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Old March 14th, 2017, 09:50 AM   #2
 
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A lighter spring will reduce trigger pull a little and will make it easier for the bolt to cycle back. The cost is lighter firing pin hits.

A heavier spring will make for harder hits, but will increase the trigger pull and make it harder for the bolt to cycle back.

It's a waste of time IMO. There are better ways to reduce pull weight, improve bolt cycling, and get better firing pin hits.

A broken main spring, or a missing/damaged plunger would be about the only good reasons to take the MSH apart IME.
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