Jump to content
Brian Enos's Forums... Maku mozo!
1911vm

SAO vs DA SA

Recommended Posts

Posted (edited)

good morning. i have an interest in getting a SA sp01 build. I have never handled a SA only gun. so besides the flat trigger what is difference between SA only and the SA on a DASA gun trigger pull. thanks

Edited by 1911vm

Share this post


Link to post
Share on other sites

The static reset. This location is further forward on the flat trigger than the curved trigger.

 

I have been modding CZ's for about a decade and the only real advantage, other than less need to polish, that I can see from a SAO conversion is being able to run a heavier hammer spring.

 

Sent from my VS987 using Tapatalk

 

 

 

956514c8eb65c548ad9a31ad3823d052.jpg

Share this post


Link to post
Share on other sites

you have to understand the only SAO gun i have is a 1911. are you saying that the reset is longer on a SAO than DASA ??? and what is the benefit  of heavier hammer spring.

Share this post


Link to post
Share on other sites
you have to understand the only SAO gun i have is a 1911. are you saying that the reset is longer on a SAO than DASA ??? and what is the benefit  of heavier hammer spring.
I am talking about the length of pull, where you stick your finger on the trigger. The curved trigger sits back further so it is closer to the frame.

If the modifications are the same, the actual reset should be the same, roughly 2 to 3 mm.

You can run a heavier hammer spring on the SAO because there is no double action trigger pull to deal with. Hammer Spring weight doesn't affect the single action pull weight that much.

Sent from my VS987 using Tapatalk

Share this post


Link to post
Share on other sites
Posted (edited)

Just so I understand correctly the length of reset is the same but the finger location is closer to the grip on curved trigger? And if that is correct the only benefit is flat trigger and hammer spring.  

Edited by 1911vm

Share this post


Link to post
Share on other sites
Just so I understand correctly the length of reset is the same but the finger location is closer to the grip on curved trigger? And if that is correct the only benefit is flat trigger and hammer spring.  

And being able to use a heavier hammer spring without affecting the weight of the trigger pull in single action. For instance, the average SA trigger pull with an agressive DA/SA trigger job is around 2 lbs with an 11.5# hammer spring.

 

With just a few mods and little to no polishing, you can achieve roughly the same trigger pull with the SAO trigger with a 13 lb or greater hammer spring. This is under the assumption that both setups have an aftermarket hammer since the hook angles are vastly different than the standard 75b trigger.

 

Sent from my VS987 using Tapatalk

 

 

 

 

 

 

 

Share this post


Link to post
Share on other sites
Posted (edited)

  Himurax13 makes an interesting point about SAO hammer spring weight options that i had not previously considered. As he stated the absence of a DA dose allow more leeway in the hammer spring weight without the detractors of a DA/SA set up. Interesting stuff.

 

 

 

Edited by Tok36

Share this post


Link to post
Share on other sites

HI Ya, i am not clear on the details; however if you are doing competition shooting SAO is much better as every pull is the same and equal.

now my problem with CZ is that in some comps they want me to start with safety on which is difficult as i have 50,000 rounds with my XD and that has no safetyz (muscle memory).

Share this post


Link to post
Share on other sites
HI Ya, i am not clear on the details; however if you are doing competition shooting SAO is much better as every pull is the same and equal.
now my problem with CZ is that in some comps they want me to start with safety on which is difficult as i have 50,000 rounds with my XD and that has no safetyz (muscle memory).
What point are you trying to make?

Every manual CZ75b can be locked and cocked, thus operate in Single Action.

Sent from my VS987 using Tapatalk

Share this post


Link to post
Share on other sites
37 minutes ago, Max It said:

HI Ya, i am not clear on the details; however if you are doing competition shooting SAO is much better as every pull is the same and equal.

now my problem with CZ is that in some comps they want me to start with safety on which is difficult as i have 50,000 rounds with my XD and that has no safetyz (muscle memory).

 

What division do you shoot with your XDM?  A CZ that is SAO shoots in the limited division and you must start with the safety engaged. If you want to shoot a CZ without engaging the safety it must be a DA/SA.  

Either way you go it is going to be very different than your XDM.  One way because you must engage the safety,  and the other because you are going to have that heavier DA first trigger pull.

Share this post


Link to post
Share on other sites

Almost everyone I know who runs DA/SA on a CZ shoots production and starts hammer down. A few run CO. The hammer down at Make Ready scares me. Last week, my fears were realized when I witnessed a shooter set off an AD while putting his hammer down. Worse part: it was the last stage of the match. We'd made it through five stages to have it start raining before the last and he said his thumb slipped off the hammer.

 

The few guys I know who shoot CZ/ Tanfo's in limited have converted them to SA only (and obviously use the safety).

Share this post


Link to post
Share on other sites

I converted mine.  Overrated.  I converted it back and just used the safety when i wanted and still had the ability to shoot prod. 

 

 

Share this post


Link to post
Share on other sites
Almost everyone I know who runs DA/SA on a CZ shoots production and starts hammer down. A few run CO. The hammer down at Make Ready scares me. Last week, my fears were realized when I witnessed a shooter set off an AD while putting his hammer down. Worse part: it was the last stage of the match. We'd made it through five stages to have it start raining before the last and he said his thumb slipped off the hammer.

 

The few guys I know who shoot CZ/ Tanfo's in limited have converted them to SA only (and obviously use the safety).

 

That's actually a good thing because it is an opportunity for people to learn. Detonating the primer while manually decocking rarely ever happens and when it does, it is due to poor technique. Thumbing down and the pinch method can easily allow that to happen. The finger roll method does not. Hopefully he will take the time to learn the proper method.

 

Sent from my VS987 using Tapatalk

 

 

 

Share this post


Link to post
Share on other sites
Posted (edited)
On ‎6‎/‎4‎/‎2019 at 7:31 AM, billthemarine2862 said:

 

What division do you shoot with your XDM?  A CZ that is SAO shoots in the limited division and you must start with the safety engaged. If you want to shoot a CZ without engaging the safety it must be a DA/SA.  

Either way you go it is going to be very different than your XDM.  One way because you must engage the safety,  and the other because you are going to have that heavier DA first trigger pull.

Bill, exactly. So i use my xD9 tactical for fast shooting and my CZ75B SA for bullseye matches.

{ first 8 years of ownership on CZ was for 'Steel Madness' matches. Where we didn't exactly follow the rules of IDPA or any other. Hence no one insisted I have the hammer down, Ah those were the days. }

much obliged, Max

Edited by Max It
expanded

Share this post


Link to post
Share on other sites

To me, there is no benefit to conversion.  The gun in its da/sa form allows you to start sa if you wish so making the gun sao is a detraction if you ask me.

Share this post


Link to post
Share on other sites

So I have to admit.  I really like how the flat trigger looks. That is almost enough for me.  Lol

Share this post


Link to post
Share on other sites

I do think Rowdy brings up a good point in the sense that with a properly fitted disco you can have a DA/SA gun where the SA has  virtually no pre-travel just the same as using a SAO gun with a pre-travel screw to limit pre-travel.  Making it easy to start cocked and locked and run SAO. 

 

I know a lot of Tanfo shooters will even fit a BOLO in their SAO guns and use a flat trigger.  They obviously never use these guns in DA. The main advantage to this type of setup would be that you don't have to worry about a pre-travel screw walking out at a bad time.

 

What Rowdy suggests is the best of both worlds. Just find a trigger with a profile you like, get a short reset disco and you can run it either way.

Share this post


Link to post
Share on other sites
Posted (edited)

I too have yet to find a CZ SAO trigger set up attractive over a DA/SA. There are certainly allot of SAO fans though, this dose not seam to change. Neat looking triggers seam to go a long way, it is why i piked up the first one i experimented with. I do like the Tac Sports in SAO but i find it to be a different animal from a 75.

Edited by Tok36

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...