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CZ 52 accuracy marks

MVP
I was told that there may be 1-2 or 3 punch marks on the slide of the CZ 52 indicating the level of accuracy determined at the factory from test fireing. Have any of you ever heard this or can give me more information on this process?
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5 comments

Date Votes
  • hughes1
    I have heard that the more punch marks on the slide, the more work that the gun needed when it was arsenal refinished. However, I own several of these fine pistols some with few marks some with many - they all shoot great and are extremely accurate. I believe these pistols are one of the best bargains out there and they are built like tanks.
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  • chunkstyle
    These were not put on for accuracy testing. They are put on for metal hardness testing. If the metal didn't pass, it went through the tempering process again. Actually, they aren't all that uncommon on many hardened metal products, just on the CZ-52, they are in a rather promenent location.

    "Go to Lakedaemon, stranger passing by;
    And say there, that in obedience to her law, here we lie"
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  • Contender Man
    They are service pistols and have accuracy equivalent to if not better than other service pistols from their era as well as since.

    I've heard two versions about the punch marks, and both many times, so I'm still not sure and have never found anything actually written on the subject. First story is that the number of punch marks indicates the number of times the pistol has been re-worked. Second story deals with number of heat treatments, but within this there is a varriant that has been stated a few times saying that the marks are the tests for hardness ...

    You can "trick" out these pistols to increase accuracy but it ain't cheap ... all that I have ever owned or own now will put a mag. full in a 6" paper desert plate at 25 yards.

    Also for $40-50+ a box you can get saboted 223 rounds ... me I prefer the 25 rnd bxs. I get at the gun shows for $1.50 each as I enjoy shootin' them as they are ... and the precision stuff is left for my match pistols and revolvers (yes, gasp I did use the "r" word).



    If you only have time to do two things so-so, or one thing well ... do the one thing!
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  • boeboe
    Anyone who has ever used a Rockwell hardness tester in an inspection environment knows it is sometimes necessary to take two or three readings to get it to register at an acceptable level. Sometimes you can get a reading the first time, sometimes it takes a few tries. Maybe even four or five tries! You keep trying because you don't want to reject an acceptable part, perhaps a boarderline acceptable part. I'm not saying those with a few marks are boarderline. It may be more the determination of the inspector to make sure they are good. It is my bet that they are hardness test marks and the inspector had to hit it a few times to make sure the reading was within specs. They have nothing to do with accuracy, or the number of times they were reworked. There is a slight chance a few marks may indicate factory re-heat treated parts. In my opinion, the more marks would mean probably the inspectors are diligent in doing their jobs.

    To err is human, to moo is bovine.
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  • rusty1
    it may not be able to drive tacks but at 1400 to 1600 fps it can relly do the job.try shooting an old car door.

    rusty1
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