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Author Topic: 4lb. 3oz. DA - SP-01  (Read 8283 times)

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Offline schmeky

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4lb. 3oz. DA - SP-01
« on: February 16, 2014, 09:32:32 PM »
Love how so many folks believe only a Shadow can have a great trigger pull.  Here's an SP-01, with the firing pin block intact, with an ice crisp 2lb. 12 oz. SA, and a very functional 4lb. 3 oz. DA.  This pistol has plenty of ignition for setting off Federal primers. 

We set this one up with a milled in LPA-TRT fully adjustable rear sight and a full action job. 

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Offline Stuart

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Re: 4lb. 3oz. DA - SP-01
« Reply #1 on: February 16, 2014, 10:26:34 PM »
Nice work Dave. Awesome trigger work.

Now we just need to convince people when they ask for these awesome triggers, they need to feed it good ammo too.
« Last Edit: February 16, 2014, 10:29:02 PM by Stuart »
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Offline 1SOW

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Re: 4lb. 3oz. DA - SP-01
« Reply #2 on: February 16, 2014, 10:26:58 PM »
That sir,  is impressive.  My 75 Shadow's DA isn't even real close to that.
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Offline Stuart

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Re: 4lb. 3oz. DA - SP-01
« Reply #3 on: February 16, 2014, 10:31:43 PM »
Quote from: 1SOW on February 16, 2014, 10:26:58 PM
That sir,  is impressive.  My 75 Shadow's DA isn't even real close to that.

Mainspring weight and TRS are pretty key to the DA stroke. Getting that light though, primers and reloading gets to be pretty key too.
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Offline harkamus

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Re: 4lb. 3oz. DA - SP-01
« Reply #4 on: February 16, 2014, 10:33:44 PM »
I wonder how light a trigger can be while still igniting any and all primers. I pose this scenario for SP-01s and Shadows.
« Last Edit: February 16, 2014, 11:48:56 PM by harkamus »
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Offline schmeky

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Re: 4lb. 3oz. DA - SP-01
« Reply #5 on: February 16, 2014, 10:57:24 PM »
Stuart is correct.  I hope I was clear is this is a Federal Primer only pistol.  Crazy to have a DA as light as the SA on some semi-autos.
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Offline Stuart

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Re: 4lb. 3oz. DA - SP-01
« Reply #6 on: February 16, 2014, 11:43:05 PM »
Quote from: schmeky on February 16, 2014, 10:57:24 PM
  Crazy to have a DA as light as the SA on some semi-autos.

crazy indeed.
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Offline harkamus

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Re: 4lb. 3oz. DA - SP-01
« Reply #7 on: February 16, 2014, 11:49:36 PM »
Lightest SP-01 and lightest Shadow pull weights that reliably ignite all primers? Sounds like a challenge!  ;D
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Offline 1SOW

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Re: 4lb. 3oz. DA - SP-01
« Reply #8 on: February 17, 2014, 01:05:21 AM »
Quote from: harkamus on February 16, 2014, 11:49:36 PM
Lightest SP-01 and lightest Shadow pull weights that reliably ignite all primers? Sounds like a challenge!  ;D

Lightest "DA" pull weights that will reliably fire "ALL"..........
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Offline coolbox

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Re: 4lb. 3oz. DA - SP-01
« Reply #9 on: February 17, 2014, 05:10:27 AM »
This is awesome!
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Life is too short to waste on a bad trigger pull

Offline Birds Away

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Re: 4lb. 3oz. DA - SP-01
« Reply #10 on: February 17, 2014, 07:07:52 AM »
That is absolutely incredible.  The lowest we have been able to get with an 11.5# mainspring is still in the high fives on the 75B.  But I am fine with that as it is soooooo smoooooooth.
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Offline kalelinslo

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Re: 4lb. 3oz. DA - SP-01
« Reply #11 on: February 18, 2014, 12:50:47 PM »
I would love to shoot this gun :)
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Offline jjdurso

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Re: 4lb. 3oz. DA - SP-01
« Reply #12 on: February 18, 2014, 04:59:12 PM »
Awesome!
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Offline RaylanGivens

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Re: 4lb. 3oz. DA - SP-01
« Reply #13 on: February 19, 2014, 02:51:51 AM »
Quote from: schmeky on February 16, 2014, 09:32:32 PM
Love how so many folks believe only a Shadow can have a great trigger pull.  Here's an SP-01, with the firing pin block intact, with an ice crisp 2lb. 12 oz. SA, and a very functional 4lb. 3 oz. DA.  This pistol has plenty of ignition for setting off Federal primers. 

Would you mind sharing your spring combination?

I have a CZ 75 SP-01 that I am working to improve...  Would like to reduce the DA/SA trigger pull...  I use Federal primers...
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CZ 75 SP-01 - Backup Gun
CZ 75 SP-01 Shadow - AA Custom

Offline 1SOW

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Re: 4lb. 3oz. DA - SP-01
« Reply #14 on: February 19, 2014, 05:46:44 PM »
I would suspect the 8.5# H.S., maybe sear spring, FP spring,  and reduced weight T.S.  + lots of careful polishing/smoothing.
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