Green’s Dictionary of Slang

hard shot adj.

[hard shot n.]
(Aus./N.Z.)

1. tough, uncompromising, incorrigible.

[NZ]N. Hilliard Maori Girl 252: The usual crowd were there, hard-case women and hard-shot men.
[NZ]G. Slatter Pagan Game (1969) 231: He was the hard shot boy of the town. But all was forgiven when he became an All Black.

2. of a woman, sexually available.

[NZ]A. Duff One Night Out Stealing 17: Oh boss! it’s only a lit ole fight. Men, as well as the hardshot women only to be found here.