Not sure on the weight, I've seen several references online that the stock pull was more than a 10lb trigger gauge. I actually hit the range today for the first time with my new Kadet kit that I have on a CZ75B with stock springs. I shot between 400-500 rounds with that setup and I had 1 that failed to fire on the first pull. I had 3 that failed to feed and a couple of stovepipes so overall I was thrilled with the way it ran. I used a mixture of Federal Blue Box (525 rounds), Remington Bucket of Bullets and CCI Mini Mags (Troy Landry edition). I had planned to switch the Kadet onto my Shadow with a 13# mainspring and run a few mags to see how that ran as a reference for you but lost track of time and never made the switch. Next time I hit the range I'll give it a run on my Shadow.
CZ Kadet Kit Issues
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LeadMonkey
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Why not just measure your main (hammer) spring? The longer the spring and less dense the coils the weaker it is...
20lbs - 6.3 cm (factory)
15lbs - 6.6 cm
13lbs - 6.8 cm
I gave up on trying to make the Kadet work with one spring, it fails miserably with the 13lb, often with the 15lb, and I cant stand to shoot the 20lb spring as I compete in IPSC several matches every month using the 13lb and just cant get used to the 20lb spring D/A pull.
I might try the 18lb spring for the $7 it costs to see if it's tolerable. The other factor as a training aid is the reduced recoil throws off your cadence and that is pretty important.
20lbs - 6.3 cm (factory)
15lbs - 6.6 cm
13lbs - 6.8 cm
I gave up on trying to make the Kadet work with one spring, it fails miserably with the 13lb, often with the 15lb, and I cant stand to shoot the 20lb spring as I compete in IPSC several matches every month using the 13lb and just cant get used to the 20lb spring D/A pull.
I might try the 18lb spring for the $7 it costs to see if it's tolerable. The other factor as a training aid is the reduced recoil throws off your cadence and that is pretty important.
I assume those measurements are for brand new springs and that used springs will differ somewhat?
I have also heard that an 18# spring from one mfg could be quite different from an 18# spring from a different mfg...so I assume lengths may also vary.
Your general comparison seems valid though. Thanks for posting the pics.
This is not how to properly measure any spring, free unloaded length is not accurate.First you need to know collapsed length, per design with out spring stack,and then you need a fixture to collopase the spring to that length and measure poundage. New springs will be manufactured longer in length to compensate for set.
It's easiest to buy springs from a know quality brand, Wolff. Springs from CZ are documented to not be the best quality.
It's easiest to buy springs from a know quality brand, Wolff. Springs from CZ are documented to not be the best quality.
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LeadMonkey
CGN frequent flyer
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You're welcome, go figure it out yourself grumpy old redneck
Welcome for what? Educate yourself. Go to Acxess Springs web site, wealth of information. Spring calculator on site is your friend. The measurements you provided as to length of the different weight springs is excellent, as were the photos. Adding the wire diameter and overall diameter would be a plus. Do you own a caliber? You can do the calculation, with a fixture, as I posted.Works great to check recoil spring condition, or you can use this online calculator and get a quick ball park idea of weight and condition. The fact that you posted known spring weight and length will allow anyone the ability to have a good idea of what spring is in their pistol if it's an unknown.
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I have been having issues with my Kadet2 adapter and put it up on EE as I've given up. As usual, found a potential source of many people's problems right after that.
Found the fix as I am not the only one that has had issues with the Kadet 2 Ejector.
cz kadet 2 ejector issues (Google)
Solution
http://www.czfirearms.us/index.php?topic=66118.0
I'm afraid to try it actually for fear of damaging it beyond valuable recovery. If I don't get a decent offer before the week is out I will go that route and chalk it up to experience and go get a dedicated 22 pistol.
Found the fix as I am not the only one that has had issues with the Kadet 2 Ejector.
cz kadet 2 ejector issues (Google)
Solution
http://www.czfirearms.us/index.php?topic=66118.0
I'm afraid to try it actually for fear of damaging it beyond valuable recovery. If I don't get a decent offer before the week is out I will go that route and chalk it up to experience and go get a dedicated 22 pistol.
Just a final note before it is sold. I think I have managed to replicate the issue using a spent casing and 22 snap caps. The minor fitting that is done to put it on a CZ Shadow lower has nothing to do with the function of the slide/22 barrel itself. The extractor does its job in grabbing a spent 22 casing and pulling it from the chamber. The deflector, or whatever it's called sometimes just doesn't deflect it far enough back to move it clear of the ejection port.
I will see if I can get it to the range to get a final picture. I think my pistol is dirtier than I realize and it is a function of springs. It works fine when there is 3 or less rounds in a ten round magazine. Why a problem when more than 3. I haven't found too many solutions online other than filing and springs.
Awaiting an answer from the vendor I ordered it from and I will note any success/issue here. CZ forums were only a limited source of information.
I will see if I can get it to the range to get a final picture. I think my pistol is dirtier than I realize and it is a function of springs. It works fine when there is 3 or less rounds in a ten round magazine. Why a problem when more than 3. I haven't found too many solutions online other than filing and springs.
Awaiting an answer from the vendor I ordered it from and I will note any success/issue here. CZ forums were only a limited source of information.
Here is the response from where I got the CZ Kadet adapter:
"Hi Terry,
Really sorry for the delayed reply... I've had a lot happening here over
the past couple of weeks.
To the point of your email, I've done a little research and have a couple of
suggestions.
First, I've read that some of these kits need at least 250 rounds through
them before they get broken in. The feeding issues are pretty common in the
early stages of the break in. It is recommended to use CCI mini mag ammo for
the break in period.
There are some reports of them being a little finicky regarding the ammo
choice. What brands of ammo have you tried? Word is that Federal is prone to
not work well, but Remington is a little better.
Another thing to do is to check the feed lips on the magazines. Apparently
some of the mags are slightly out of spec and the spent rounds catch on the
feed lips when coming out of the chamber causing the malfunction. You can
place an empty case in the chamber and gently close the slide on it until
the extractor hooks the rim. Then with an empty magazine inserted, slowly
pull the slide back and see if the case contacts the feed lips. If it does,
then a little delicate filing on the front of the lips should solve the
problem.
It is also suggested to test the slide by removing the recoil spring and
magazine. Install the slide on the frame and see if it moves freely back and
forth on the rails. If there is any resistance in movement, check the slide
for roughness or burrs. I've heard that some of the slides had a little too
much finish applied and need to be polished where they ride on the frame.
If none of the above make any difference, let us know and we will get in
touch with CZ USA directly and find out what the best course of action will
be.
Regards,
Marshall"
Hope that helps others.
"Hi Terry,
Really sorry for the delayed reply... I've had a lot happening here over
the past couple of weeks.
To the point of your email, I've done a little research and have a couple of
suggestions.
First, I've read that some of these kits need at least 250 rounds through
them before they get broken in. The feeding issues are pretty common in the
early stages of the break in. It is recommended to use CCI mini mag ammo for
the break in period.
There are some reports of them being a little finicky regarding the ammo
choice. What brands of ammo have you tried? Word is that Federal is prone to
not work well, but Remington is a little better.
Another thing to do is to check the feed lips on the magazines. Apparently
some of the mags are slightly out of spec and the spent rounds catch on the
feed lips when coming out of the chamber causing the malfunction. You can
place an empty case in the chamber and gently close the slide on it until
the extractor hooks the rim. Then with an empty magazine inserted, slowly
pull the slide back and see if the case contacts the feed lips. If it does,
then a little delicate filing on the front of the lips should solve the
problem.
It is also suggested to test the slide by removing the recoil spring and
magazine. Install the slide on the frame and see if it moves freely back and
forth on the rails. If there is any resistance in movement, check the slide
for roughness or burrs. I've heard that some of the slides had a little too
much finish applied and need to be polished where they ride on the frame.
If none of the above make any difference, let us know and we will get in
touch with CZ USA directly and find out what the best course of action will
be.
Regards,
Marshall"
Hope that helps others.
