"Experienced shooters are not exempt from making mistakes. Bad habits, complacency and deteriorated eyesight have been linked to past incidents.
"Each and every hunter needs to look hard at their own and their mates' attitudes and conduct and ensure that safety is the most basic of considerations when hunting."
Mr O'Leary said in the past decade the number of firearm license applicants has more than doubled and this has increased hunter numbers.
The Hunter Safety Inter-agency Committee promotes safe firearm usage and draws its members from NZ Police, Department of Conservation, New Zealand Deerstalkers' Association, Fish and Game NZ, New Zealand Pig Hunters' Association and Firearm Safety Specialists NZ.