The Czech ammo which is on the market today was never intended to go through a Tokarev pistol.
It was designed for the VZ-52 pistol, which had a VERY strong double-roller locking mechanism redesigned from the MG-42 machinegun. Same stuff was used in a family of SMGs, which is why it is in clips: SMG had a loading slot built-in.
The stuff will work in a Tokarev because the thing is just so darned tough, but it IS hard even on the Tokarev. Same ammo would be a flatly excessive load for an original Mauser...... and it would likely wreck a $30,000 Borchardt with a single magazine-load.
MY Tokarev is a 1952 Hungarian-made gun: good, solid and highly accurate. It came out of Angola, about 35 years ago; I regard it as too historically important to take chances with. IT GETS HANDLOADS. I did try some of the Czech stuff in it, but ran into excessive recoil right from Round 1..... and into (expensive) grief in TWO mags.
For a Mauser, this would be like feeding the poor thing a steady diet of Proof loads when you know it was designed to take ONE ONLY.
Caveat emptor.