The Original CZ Forum
GENERAL => Cajun Gun Works => Topic started by: jabski on August 30, 2018, 02:26:47 AM
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Ok, not sure what?s going on with my new pcr. I bought it last week, and have not fired it yet, as I was waiting on upgrades from CGW.
I also have a new 97BD that I also install d the pro package on. It too has not been fired since the upgrades.
When I do the pencil test in the 97, it shoots it 3-4 feet into the air.
The pcr, not so much. It moves MAYBE 2 inches, if that! Not really sure why the huge difference in launch velocity.
Just wondering if anyone that did a similar upgrade has the same thing going on..
On the 97 Pro Package, it came with the RRK 2, yet the pcr arrived with a RRK 1.
Not sure why that is.....
But anyway, short of shooting it to see, does anybody have any ideas on this situation?
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Go shoot the gun before you start looking for problems. That simple.
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Some pistols move the pencil farther than others. Function of three things.
1) always use a new pencil and insert it with the wood/lead end inside (after a strike or two the firing pin/striker makes a dent that reduces the impact of each successive strike if/when the strike occurs in the previously made dent.)
2) firing pin protrustion amount/distance
3) hammer spring strength
4) internal contact with firing pin block (might not be enough to cause a real failure to fire but may stll slightly slow the firing pin down).
I've done the pin test with several pistols. Even with the extra strength striker springs in the Glock and the M&Ps they will not lift a pencil out of the muzzle. The XDMs on the other hand, with stock striker springs, will just clear the barrel with the pencil. My 1911 will bounce the pencil off the ceiling. I don't recall trying the P07/P09 pistols. I know I've tried the CZ Compacts (Compact, P01 Omega, etc. but I sure don't remember how high the pencil went.)
Test it at the range. If it makes the rounds go "bang" it's good.
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As long as it shoots well do not worry.
Shoot first, complain later.
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Case in point - my Phantom will move the pencil quite handily. The P-10C, either one, it's barely visible. However, the P-10Cs have been perfectly reliable in igniting every primer I put in there.
I have never had one that launched the pencil - I'd be worrying a striker/firing pin moving that fast might damage itself or puncture a primer.
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This is simple, the extractor claw can keep a pencil from resting completely on the breech face.
Pencil test is fine for .45's, but not so reliable on 9 mm's. As everyone has indicated, best test is to shoot.
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Yeah, I know shooting is the tell all.Not really LOOKING for problems, but to my uneducated mind, it didn?t seem normal. Thanks for the opinions.I think I?ll go shoot it when I have the opportunity.
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you have the pistol to shoot bullets or pencils?
I have never heard of the "pencil test".
Gun goes bang every time is the only test that matters
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Thanks for the explanations.
Dave, that?s an interesting observation , and kind of makes sense....
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This is simple, the extractor claw can keep a pencil from resting completely on the breech face.
Pencil test is fine for .45's, but so reliable on 9 mm's. As everyone has indicated, best test is to shoot.
Hence why I use a 1/4" delrin rod for my "pencil" tests.
8)
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This is simple, the extractor claw can keep a pencil from resting completely on the breech face.
Pencil test is fine for .45's, but so reliable on 9 mm's. As everyone has indicated, best test is to shoot.
Here's why I don't do the pencil test,
I do the bullet test - I only get Alphas with bullets I never got anything but Mikes with a pencil......so I do bullet tests.
RCG
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I only use the pencil test in my crossbow. ;D
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If I'd done the pencil test on my CZ 75 Compact before I went to the range I'd have known it wouldn't go bang. It cocked, it hand cycled, the hammer fell, the firing pin just couldn't reach the primer because the firing pin block/lifting arm wasn't fully resetting.
When I was having failure to fire issues with the M&P FS it was also a timing issue. The trigger would ove th sear, the sear would release the striker but the striker block (sometimes) wasn't being lifted fully out of the way every time. That resulted in a light strike on the primer as the striker didn't drive deep/hard enough after forcing itself past the striker block.
All the pencil test does is confirm (safely and quietly at the bench/table) that things are working correctly and the striker/firing pin can hit the primer hard enough to make it go "bang".
https://www.youtube.com/watch?v=wJpFpURCgaQ