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Smith Wesson 52-2 trigger adjustment

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Sa-tevp
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C.Perkins
Jwhelan939
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Post by Jwhelan939 Sun Nov 01, 2015 6:14 pm

Hey all,

I am loving my new 52-2 with 2 minor gripes.

The first is that the trigger weight is below legal at 2 lbs 5oz. This I have read should be a matter of sear spring adjustment and maybe mainspring change. Hopefully that will help.

The second minor issue is that the trigger length is very short for my paws. The manual didn't come with my 52 when I purchased it, and Google hasn't been overly helpful. Does the trigger have any adjustments? Any help would be much appreciated. Thanks for any help.

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Post by C.Perkins Sun Nov 01, 2015 7:45 pm

Jwhelan;

The M52 trigger has some adjustment per se.
Not the type of adjustment that I think you are looking for.
The trigger is adjustable to how far it will extend to the forward position and this is due to the early M52's with the double action feature so it will extend far enough forward to capture the double action hook on the hammer.
But there will be no resistance, just take up until the transfer bar contacts the sear.

I just use a DJ Precision shoe which extends it good enough for me at this time.
I have it adjusted so when it releases the hammer to fire and you let up for reset, the trigger movement stops just past that and not all the way forward as it usually is set from the factory.
This is trial and error to get comfortable with the new setting so you do not have an inadvertent discharge but with practice it is the cats meow.
What it does is decreases total trigger movement from rested to fired position and back.
I am liking it so far Smile

As far as increasing the trigger pull weight there are maybe 3 springs to control it.
I found the transfer bar spring was broken in mine and replaced it which helped.
I replaced the sear spring which helped(you could also bend it some).
I replaced the hammer spring also and it helped some.

If you take one apart keep notes and take photos, it comes apart and back together in a sequence Smile

Clarence
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Post by Jwhelan939 Sun Nov 01, 2015 9:05 pm

Thank you for the help! I'll have to look at the trigger shoe. I'm getting very good scores, for me, my finger placement just feels very unnatural.

As far as weight, I have a sear spring and mainspring in route to me now. Hopefully they will help.

Thank you again for the response.

Jwhelan939

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Post by oldsalt444 Mon Nov 02, 2015 7:31 pm

Where are you getting your springs ?  I need some as my trigger pull has fallen to 1.5 lbs.
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Post by C.Perkins Mon Nov 02, 2015 7:56 pm

It has taken me about three years to accumulate small parts for my M52-1 by constantly browsing ebay and gunbroker.

Happened on a grab bag full of parts and took a chance on what was in it about a month ago.

I totally went through my M52 and replaced all springs and small parts about 3 weeks ago.
It really did not need a lot of the parts but installed them anyway.

I need to take an inventory of what I have and will part with what I have more than one of.

I may post up what I have this weekend if i get all my chores done before it gets too cold here to do what I need to do.

If someone is looking for something in particular, let me know.

Clarence
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Post by jglenn21 Mon Nov 02, 2015 8:21 pm

Wulff only carries the recoil  and magazine spring for the 52. they have several different ones.
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Post by Sa-tevp Mon Nov 02, 2015 9:31 pm

Items 11, 39 and 65 look to be the springs involved in the trigger of a M52.
Numrich 52-2 Schematic

I purchased the trigger bar and hammer springs for my M52-2 due to the trigger being 1.75 pounds, but it turned out that the sear spring needed tweaking. At the time I was looking for a Center Fire trigger weight, but I should have set it to a International weight to give more competition options. Supposedly S&W offered a sear spring for the slightly higher trigger weight at one time.

I'm hoping a trigger shoe will help me make peace with the goofy trigger reach.
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Post by Jwhelan939 Mon Nov 02, 2015 9:40 pm

Ditto on numrich

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Post by fc60 Tue Nov 03, 2015 12:11 pm

Greetings,

S&W did offer a non cataloged Sear Spring to enable a 3# trigger for the ISU matches. I do not recall the part number.

Locate the services of a good Machinist or Tool Maker and have some new springs made and tempered from thicker material.

Cheers,

Dave
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Post by desben Tue Nov 03, 2015 2:33 pm

In international matches, the ISSF rules (8.12) now allows a 1,000 gram trigger, i.e. 2.2 lbs, for centerfire, the same as rimfire. They made that change years ago. It makes it easy for shooters to just swap uppers on their Pardini or Walther to shoot the different matches.

I wonder when the NRA will update its rules to match... I downloaded the rulebook from the NRA web site site, dated January 2015, and rule 3.4 still states a 1,360 grams (3lbs).
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Post by Virgil Kane Tue Nov 03, 2015 3:40 pm

Many parts form the M-39 and others of this 39 series frame size will fit the M-52. Things like draw bar plunger and draw bar plunger springs are the same size and a bit heavier in compression that will make the trigger a bit higher in weight. The sear spring for the M-39 is about an 1/8 inch too wide for the M-52 but once again it's a bit thicker than the sear spring for the M-52 and can be stoned down in width to fit.


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Post by Jerry Keefer Tue Nov 03, 2015 7:02 pm

My lady shooter wanted her 52 at 3.5, same as her 45.. Had to cut the sear face and hammer hooks to get the weight up with a new factory sear spring..
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Post by Sa-tevp Tue Nov 03, 2015 8:21 pm

desben wrote:In international matches, the ISSF rules (8.12) now allows a 1,000 gram trigger, i.e. 2.2 lbs, for centerfire, the same as rimfire. They made that change years ago. It makes it easy for shooters to just swap uppers on their Pardini or Walther to shoot the different matches.

I wonder when the NRA will update its rules to match... I downloaded the rulebook from the NRA web site site, dated January 2015, and rule 3.4 still states a 1,360 grams (3lbs).

Thanks for looking that up. I think the International CF events will be ISSF since the group that wants to organize the events hosts air pistol events using ISSF rules too. That saves me from getting into my CF pistol and revolver to up the trigger weight from Bullseye weights, but now I need to go check my 22s.
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Post by Jwhelan939 Wed Nov 11, 2015 5:12 pm

I got my parts from Numrich. Changed my mainspring and sear spring in hopes of adding 1/4# to my trigger. No go. Even with the replacements, and playing with the bend in the sear spring I am still at 2 1/4 pounds.

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