Gladys Berejiklian should not assume that the Shooters, Fishers and Farmers would help her form government, the minor party says, as the Premier rules out a preference deal with them.

Ms Berejiklian says she would not do a preference swap with the Shooters, Fishers and Farmers because she would not do anything to jeopardise John Howard's tough gun laws.

NSW Premier Gladys Berejiklian says she would not swap preferences with the Shooters, Fishers and Farmers. Credit:James Alcock

Her stance comes as Ms Berejiklian could be forced to rely on the conservative minor party if the Coalition finds itself in minority government after the March election.

Ms Berejiklian has also challenged Opposition Leader Michael Daley to rule out a preference deal with the Shooters' party, warning that if he did not, gun laws in NSW could be weakened.