Shooting quantity available from Polygunbag. Website also has a good photo of the sectioned 91gr hollow core bullet.
Interesting description there.
Might be worth to mention that this is a police training cartridge as “PTP” means “Polizei Trainingspatrone”
Seems people like to “enhance” (not to say lie) the descriptions in order to make more money like with those 7.62x54R PZ which were declared as Raufoss wonder bullets.