CZ Shadow question.

SkilledShooter

SkilledShooter

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Forgive my ignorance,:redface: but I have no idea why most of you agree that the CZ Shadow is a good gun for IPSC and yet you recommend changing recoil and main springs in that gun.

What do these changes accomplish, is it for less recoil and accuracy?

What else would you recommend to be changed or adjusted besides those springs.

I'm going to take the Black Badge course and have the CZ Shadow and would like to have a good gun for it.

I do not reload so will be using factory ammo.

Thanks guys.
 
It is just that lighter springs are making easier to operate the gun. Especially the lighter main spring will make double action trigger pull much nicer. Other then that you shouldn't require (nor allowed) any other modifications.
 
euxx said:
It is just that lighter springs are making easier to operate the gun. Especially the lighter main spring will make double action trigger pull much nicer. Other then that you shouldn't require (nor allowed) any other modifications.
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We have to meet only 125 PF which is a light load for the 9MM. If you are using factory ammo then leave the spring alone.

Take Care

Bob
 
Canuck44 said:
We have to meet only 125 PF which is a light load for the 9MM. If you are using factory ammo then leave the spring alone.

Take Care

Bob
Click to expand...

Bob, I suppose you are referring to recoil spring.
Most people are loading for 130..135PF (just to be safe at the chronograph), while factory ammo is somewhere around 140PF, so not much difference really. So, I would still replace the main spring and if the gun works - leave recoil spring as is.
 
Reduced rate main spring will allow for lighter DA/SA pull, thus one of the advantages - improved accuracy.
Reduced rate recoil spring will allow for proper slide cycling when shooting lighter loaded ammo since recoil isn't as powerful.

Both tricks (springs) get replaces for lighter ones on many guns, not just CZ, take 1911 for example. Often, main is swapped for 17# and recoil can go as low as 12# on some guns.

The best you can get done on Shadow is competition hammer along with polishing a few things.
 
euxx said:
Bob, I suppose you are referring to recoil spring.
Most people are loading for 130..135PF (just to be safe at the chronograph), while factory ammo is somewhere around 140PF, so not much difference really. So, I would still replace the main spring and if the gun works - leave recoil spring as is.
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If shooting 125gr or 147gr bullets, recoil will be less, so you'd need lighter recoil spring.
 
CeeZer said:
If shooting 125gr or 147gr bullets, recoil will be less, so you'd need lighter recoil spring.
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The bullet weight is only one factor that contributes to the power factor. More importantly is the powder burning rate (i.e. how fast it is) and how much powder you have befind give bullet. No question, the recoil spring need to be balanced for the load - too light or too hard and the gun won't recycle properly.

I won't recommend to use the competition hammer. You don't need it in order to learn to soot your gun. Besides, CZ is a great gun out of the box. Personally I haven't done any polishing on mine and just shoot 10,000+ rounds in less then a year. After that the gun is very very smooth.
 
They ARE a great gun right out of the box. But even great guns can be tuned to make them better. That's what some tuning and spring swapping do for you. The tuning being some minor polishing to smoothen up the trigger pull. But if you didn't do anything other than go with the lighter main spring and rely on shooting a lot to do the polishing for you then you'll still end up with a great gun.
 
Exactly, why shoot 10K or even extra 1K rounds and having parts worn (barrel too) doing so if one can get the gun tuned for the job, in this case OP was talking IPSC.
Hammer swap isn't necessary, agree on that, but I was saying it was the best thing that can be done to his Shadow to be at advantage in matches.
 
CeeZer said:
Oh man, did you read what I wrote?
Again: "the best thing that can be done to his Shadow"
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Yep. No offense, but I believe it is money spent for nothing. A useless suggestion.

Not to mention that uncle Vince will ban such modification for production gun, so all of a sudden you can end up in Standard division. There is a chart of allowed spare parts for CZ and if I am not mistaken, competition hammer is not on that chart. There is a FAQ about that at the Global Village forum.
 
euxx said:
Bob, I suppose you are referring to recoil spring.
Most people are loading for 130..135PF (just to be safe at the chronograph), while factory ammo is somewhere around 140PF, so not much difference really. So, I would still replace the main spring and if the gun works - leave recoil spring as is.
Click to expand...

I would suggest that factory 147gr winchester is approx 144-147pf!:eek:,..a number of chronies showed this. 124gr might be less,...about 140-141pf.
 
euxx said:
Bob, I suppose you are referring to recoil spring.
Most people are loading for 130..135PF (just to be safe at the chronograph), while factory ammo is somewhere around 140PF, so not much difference really. So, I would still replace the main spring and if the gun works - leave recoil spring as is.
Click to expand...

Sorry yes indeed I was. As to the mainspring I replaced mine with a 13# spring and it certainly does reduce the DA/SA trigger pull. While some report light strikes using the 13# spring I have not using Win, CCI and Federal primers. The latter being my first choice of primers. Remington primers, from my experience appear to be much harder and I have had light strikes using them.

The Shadow excells as an IPSC Production gun. For IDPA I prefer the 85 Combat. The gun is lighter and I can get slightly faster draws using it. This is personal preference and others may find just the opposite.

Take Care

Bob
 
euxx said:
Not to mention that uncle Vince will ban such modification for production gun, so all of a sudden you can end up in Standard division. There is a chart of allowed spare parts for CZ and if I am not mistaken, competition hammer is not on that chart. There is a FAQ about that at the Global Village forum.
Click to expand...

You are mistaken

CZ USA Competition hammer in the exploded diagram.
http://ipsc.invisionzone.com/index.php?showtopic=5749

Topic on it here:
http://ipsc.invisionzone.com/index.php?showtopic=7132
 
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