Took my trap gun to Sacramento last June. No problems. Bring a copy of your Hawaii registration with you just in case. Now if your rifle is an AR that is not Kali compliant, you'll have problems. If a bolt, single shot, or lever, no probs. I would check with CHP if an AR is ok but would be willing to bet if it is not Kali compliant I would leave it here. Mini 14/30, BAR and Remington semis are ok but no mags over 10 rounds. Good news is there is no limit for hunting, as long as it's 10 or less. Call CHP,they gqve me excellent advice and emailed me all the info....