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Loose slide fitment CZ


-JCN-
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Hi guys, I was used to Glocks where you can put any slide on compatible frames because the fitment is so loose. 
 

I am shooting CZ shadows now and I think I effed up by mixing slides and shooting 20,000 rounds. 
 

Now the slide has a little up and down “play” when I push on it, that a new one doesn’t have. 
 

I’m sure it only affects accuracy minimally for this sport... but wondering if there is something I can do to tighten the fitment of a worn frame to slide. Or just deal?

 

Is there such a thing as wearing out the frame and did I accelerate it by not being generous with lube (sandpaper effect)?

 

Just trying to get a context of how long a competition gun should last. I’m at 20,000 rounds and that doesn’t seem like a lot from a competition perspective. 
 

Thanks in advance. 

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Is it possible you didn't catch it when you first mixed the slides?  Unless custom fitted to tight tollerence there will be movement.   And yes it will loosen with use.  There are a lot of factors.   Many smiths offer slide tightening service.  

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And for a 5" barrel, ever .001" of slide to frame movement translates to .18" at 25yrd. This is worst possible case but  likely much less.  Your call if you think it's worth spending $200 to improve.  

Edited by jwhittin
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18 hours ago, jwhittin said:

And for a 5" barrel, ever .001" of slide to frame movement translates to .18" at 25yrd. This is worst possible case but  likely much less.  Your call if you think it's worth spending $200 to improve.  

I disagree with this.

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5 hours ago, SGT_Schultz said:

 

Correct.  The fit between the barrel and the slide is what matters.

 

OP, again, what kind of accuracy is your pistol producing today in capable hands?


That’s a good idea. In the meantime I received a replacement optic (lens cracked) and sighted in the well worn gun and the new one. 
 

I’m guessing that the accuracy of both is still under 1.5” at 25 yards. I was using 1” pasters and a 6 MOA dot from a bench rest. 
 

But good idea. I was just sighting them in, so stopped when I was clustered close. 
 

I can just do a 10 shot test of each one separately and measure the spread. 

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2 hours ago, -JCN- said:

Well, I guess that answers that. Thanks Shultz for the real world data request!

 

Loose gun best 4/5 group at 25 yards is 1.33” and new, tight gun same thing at 25 yards is 1.56” so the loose one still is as good as anything else!

5907FA0C-5118-4531-BAF4-52ABA8C514A9.jpeg

 

I was right.

 

Imagine that...........

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21 minutes ago, SGT_Schultz said:

 

I was right.

 

Imagine that...........


I’m new here, and I don’t know who is knowledgeable and who isn’t. So I appreciate you taking the time to help me help myself!

 

And yes, I did correct the windage on the new gun right afterwards. :D

Edited by -JCN-
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Just now, -JCN- said:


I’m new here, and I don’t know who is knowledgeable and who isn’t. So I appreciate you taking the time to help me help myself!

 

I was right only inasmuch as I asked the right question: how does the gun shoot?

 

Hopefully you've learned from this whole deal the most important truth in shooting: the bullet never lies.

 

It means that you can get wrapped around the axle listening to all the so called experts and all the internet bulls#!t about slide to frame fit, or you can shoot the gun and see what IT tells you.

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