I think there is a minimum for Leopard, like the rest of the animals, but do believe it is less than your 330 Dakota. For some reason, I'm thinking it is either 270 or 7mm in caliber, don't know the energy minimums.
Your best bet is to contact the outfitter you are booked with, or a booking agent if you haven't booked yet, and ask them.
Wild Sheep Federation - Life Member
OVIS/Grand Slam Club - Life Member
Safari Club International - Life Member
National Rifle Association - Life Member