The tok uses a tipping barrel lock up, and the cz 52 used a roller lock. The barrel on the 52 is in a straight line in relation to the bore, All other things being equal (bore condition, front bearing surface, ect) by design the cz 52 is more accurate. So I agree.
In theory, the CZ should be more accurate -- but consistency of lockup is the key. When the sights are on the slide,
unless the barrel realigns with the slide in exactly the same way after each shot there's room for variation and error in aimed fire. There may be TIGHT barrel/slide fit on examples of either of these, but I doubt that such "fine fit" is all that common in either gun.
If the Tok locks up consistently, the barrel will have moved a mere fraction of an inch before the bullet leaves the barrel, and vertical barrel movement (TILT), which should be the same with each shot, will adjust the point of impact in a consistent manner. A Tokarev can be just as accurate as the CZ-52, all other factors being equal -- but neither gun is considered a target pistol.
Guns that use a rotating barrel lockup system comparable in some respects to the CZ-52 design -- and there are several (the Beretta Cougar among them) -- do not generally outperformed guns with the Browning-designed tilting systems in terms of accuracy.
Both the Tok and the CZ-52 were designed as military service weapons, for up-close-and-personal work, and fine accuracy was arguably NOT a consideration.
Some observers say that CZ-52 engineers chose the ROLLER system (based on a German machine gun, itself based on an earlier Polish design) to assure stronger lockup, allowing the use of more-powerful ammunition. Could be -- but other observers note that the Tokarev chamber itself is much beefier than the CZ-52 chamber, and that factor also affects the ability of a gun to handle hot ammo. (From Wikipedia: "The bottom of the CZ 52 chamber measures 0.058", whereas the supposedly weaker TT33 Tokarev pistol measures 0.125" at the bottom of the chamber.")
I've shot both the Tok and CZ-52 but own neither, and have no dog in this fight. Both are a hoot to shoot -- especially in low-light conditions. The 7.62x25 round will defeat most body armor, which is frightening.
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