Most probably this is a rifle intended for hunters, for practising at targets and also for competitions.
The base for a peep sight and the adjustable (and detachable ?)rear sight hint that direction.
Most probably the cartridge will be 8.15x46R. Relatively cheap, components for reloading available, and also suitable for hunting, up to roe deer.
But any other cartridge might be possible, between 5.6x52R (.22 Savage), 8x57 IR, even 9x57R or 9.3x72R.
The first meaning of "Panzer" is "armour", I guess this is marketing to indicate an extra strong action, opposed to break-actions.
Regards,
Fuhrmann
