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Raising SA weight on revolver

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Tripscape
Tim:H11
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orpheoet
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Raising SA weight on revolver Empty Raising SA weight on revolver

Post by orpheoet Sat Jan 15, 2022 6:22 pm

I want to shoot my 625-2 for the new CMP Service Revolver match but of course my SA is light. It needs to be 4 Lbs. I have a 13lb rebound spring in it. Go up on the rebound spring weight, replace main spring, or both?
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Post by chiz1180 Sat Jan 15, 2022 6:51 pm

Before I would mess with any of my guns I would wait until the rule book is available as a printed article.
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Post by james r chapman Sat Jan 15, 2022 7:17 pm

Increase rebound spring. Std factory mainspring
Might work, might not.
4# is hard to achieve in a revolver

Factory pre model 27 , 2#12oz factory
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Post by Tim:H11 Sat Jan 15, 2022 7:27 pm

I would not bring it up to 4 pounds. Those guns weren’t designed to be set like that. They came from the factory with lighter single action pulls than four pounds. I would wait for some rule revisions. Four pounds sounds excessive to me.
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Post by Tripscape Sat Jan 15, 2022 7:34 pm

Heavier weight for SA on SW revolver other than springs is to alter the notch on the hammer to have deeper cut. This will mess up surface hardening which is about a thou or two. Will need to be re-hardened. Not an easy thing.

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Post by chiz1180 Sat Jan 15, 2022 8:41 pm

Tim:H11 wrote:I would not bring it up to 4 pounds. Those guns weren’t designed to be set like that. They came from the factory with lighter single action pulls than four pounds. I would wait for some rule revisions. Four pounds sounds excessive to me.
Personally have handled a few 45 cal revolvers that did have a 4ish pound single action. It is a possibility but likely not the norm. Most of the 45 cal revolvers I have interact experienced were probably less than 4lbs. 

In my personal opinion the amount of weight a trigger is capable of lifting is less important than consistency, a trigger that feels the same pull after pull is where the magic happens.
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Post by kc.crawford.7 Sun Jan 16, 2022 8:16 am

I believe it's going to be 2.5lb in the published rule book.
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Post by Multiracer Sun Jan 16, 2022 4:40 pm

kc.crawford.7 wrote:I believe it's going to be 2.5lb in the published rule book.
Thats more like the half dozen different revolvers I have. Some worked on some not.

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Post by kjanracing Tue Jan 18, 2022 3:22 pm

Buy a new Colt Python. SA trigger is about 5.5 lbs!
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Post by Wes Lorenz Tue Jan 18, 2022 6:25 pm

The weight has been changed to 2.5lbs in rulebook revision 1/16/22, section 4.1.7 ,pg. 40.

https://thecmp.org/wp-content/uploads/2021/04/2022PistolRules.pdf
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