Pine and gopher snakes are good for hissing. They also will rattle their tails in substrate or against the side of an enclosure and sound like a rattlesnake. My son's Sonoran gopher used to do this all of the time, along with striking with a closed mouth. He has tamed down considerably with age and once per week handling.
Do you use a hook to take him out or do it by hand?
By the way, he is gorgeous!