Around 1995 I was talking to an instructor from the Treasury School near Brunswick, GA. The conversation turned to the CZ-52.
I told him about an article I had read in “The American Rifleman” about some of the hot ammo which was apparently safe in that pistol but probably not in a Tokarev.
He said they got a hold of some of that hot stuff and tested it on a bullet proof vest. I forgot to ask what it was but he said that 7.65X25 went right through it.
I wouldn't jump in here but this is a safety issue. It is a myth that the CZ-52 is stronger than the Tokarev. A fellow by the name of Clark Magnuson did some research in this area. In addition, after blowing up two CZ-52's himself he discovered the the area of the barrel under the rolling blocks is exceedingly thin and leads to catastrophic crack propagation and barrel failure with heavy loads. The Tokarev has a thicker barrel and can sustain higher pressures. If you read through the thread linked below to his post you will find a number of references and a description of his personal experience.