TT-33 is rumored to penetrate class IIB body armour. Is it true?
So it is said. Don’t know if it’s true. Selco, in his blog speaks from experience when he says that two shots from a TT33 would put someone down.
It is a fast round.
Most certainly, with the right ammo. And reloads using the 108-grain .30 M1 Carbine tracer bullet are fun too, as are loads using Hornady XTP hollowpoints. If you don't like to handload, try Wolf Gold FMJ which runs about 1,700 feet per second at the muzzle.