How much would reduced trigger spring lower pull weight?

[bsand]

Was wondering how much would the reduced weight trigger spring lower the pull? I've got a shadow custom that's 7.5 da and 3.25 SA right now.

Have a solid trigger pin and reduced trigger spring on the way (should arrive tomorrow! Super quick shipping!).

Also was wondering how difficult would removing the factory pin be? I have a 5/64 pin on order from Amazon prime.

Thanks

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[tdogg]

I don't remember what the reduced power TRS lowers the pull weight but I think it is about .5-1 lb.

Your going to want a starter punch for the trigger pin.  I use an old pin punch that broke and I just ground it down to a point.  The factory trigger pin is flared on both ends and you have to punch the pin (and the flare) out.  Pick the side that doesn't look like it has as much flare and punch it out from that side.

Cheers,
Toby

[Earl Keese]

1/2 lb average on mine. You can bend it as well to make it lighter.

[srREXed]

There's a full thread dedicated to what modifications make what changes to your trigger pull. You should just search for it. Scarlett put a lot of time into it for folks not to be able to find it easily.


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[bsand]

Oh man... I installed the spring and now my reloads need two strikes to fire. Not all the time. But out of 150 rounds 15 times min. One magazine had 4 of them...

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[streets ahead]

The TRS is causing light strikes? I was under the impression that was a function of the firing pin, firing pin spring, hammer and mainspring.

[bsand]

Not light strikes, there is a solid hit on primer buy needs another hit to ignite.

I'm just extremely confused.. last time out I had maybe 1 out of 100 rounds need a double hit.

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[Earl Keese]

I don't see any way that would be caused by the trigger return spring. Sure it isn't a primer seating issue?

[Earl Keese]

There's a full thread dedicated to what modifications make what changes to your trigger pull. You should just search for it. Scarlett put a lot of time into it for folks not to be able to find it easily.


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I don't think I've ever seen a "search is your friend" post on this forum. Somebody has always been willing to answer questions when asked, even the ones that have been asked/answered multiple times. That's a big part of what makes this such a welcoming community.

[copemech]

Not light strikes, there is a solid hit on primer buy needs another hit to ignite.

I'm just extremely confused.. last time out I had maybe 1 out of 100 rounds need a double hit.

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Sounds like your primers are not fully seated if you have proper mainspring and fireing pin. Is it just with your own reloads?

[bsand]

Not light strikes, there is a solid hit on primer buy needs another hit to ignite.

I'm just extremely confused.. last time out I had maybe 1 out of 100 rounds need a double hit.

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Sounds like your primers are not fully seated if you have proper mainspring and fireing pin. Is it just with your own reloads?

I don't see any way that would be caused by the trigger return spring. Sure it isn't a primer seating issue?

That's what I'm thinking, but they work fine in a HK vp9 and Ruger American pistol. My buddies been reloading them for me. They all sit flat, but when I reload rifle ammo the primer is always below flush.

I haven't tested factory ammo since the spring, but I really doubt it's the spring causing this. Just a bit of a conicidence I guess.

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[tdogg]

I've got a shadow custom that's 7.5 da and 3.25 SA right now.

Oh man... I installed the spring and now my reloads need two strikes to fire. Not all the time. But out of 150 rounds 15 times min. One magazine had 4 of them...

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The trigger return spring does not affect how hard your hammer falls.  What hammer does the gun have?

So do you know what main spring is installed?  Does your custom shadow have an extended firing pin?  I would assume that a DA of 7.5lb is a 13lb mainspring and it would require an extended firing pin to use.

Have you inspected the firing pin channel?  It might be worth pulling the firing pin out and cleaning the channel.  While your there you can measure the firing pin length to determine if you have an extended firing pin (OEM is 2.440 inch).

Cheers,
Toby

[bsand]

I've got a shadow custom that's 7.5 da and 3.25 SA right now.

Oh man... I installed the spring and now my reloads need two strikes to fire. Not all the time. But out of 150 rounds 15 times min. One magazine had 4 of them...

Sent from my Pixel using Tapatalk

The trigger return spring does not affect how hard your hammer falls.  What hammer does the gun have?

So do you know what main spring is installed?  Does your custom shadow have an extended firing pin?  I would assume that a DA of 7.5lb is a 13lb mainspring and it would require an extended firing pin to use.

Have you inspected the firing pin channel?  It might be worth pulling the firing pin out and cleaning the channel.  While your there you can measure the firing pin length to determine if you have an extended firing pin (OEM is 2.440 inch).

Cheers,
Toby

I have a 91030 SKU from Cz custom. 13 lb hammer, 11 lb recoil, extended FP and a hole bunch of polishing. Only thing that is different from custom shop is the return spring now.

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[Earl Keese]

Not light strikes, there is a solid hit on primer buy needs another hit to ignite.

I'm just extremely confused.. last time out I had maybe 1 out of 100 rounds need a double hit.

Sent from my Pixel using Tapatalk

Sounds like your primers are not fully seated if you have proper mainspring and fireing pin. Is it just with your own reloads?

I don't see any way that would be caused by the trigger return spring. Sure it isn't a primer seating issue?

That's what I'm thinking, but they work fine in a HK vp9 and Ruger American pistol. My buddies been reloading them for me. They all sit flat, but when I reload rifle ammo the primer is always below flush.

I haven't tested factory ammo since the spring, but I really doubt it's the spring causing this. Just a bit of a conicidence I guess.

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If the primers sit flush, I suspect that is your issue. I'd check them with a digital caliper to be sure.

[tdogg]

That gun should be 100% reliable with all primers.

I'd still inspect the firing pin channel to ensure there isn't anything obstructing the pin.

So did you just start shooting these reloads?  It seems like the primer seating issue would have been a problem prior.  Was this a new batch of reloads?

Cheers,
Toby