Unless they climb up a different tree and then over to the one with the feeder.
Killing them is the best option, and your turkeys will appreciate it, also.
This is the only thing that works IMO, and you have to be vigilant and do it often. Do they make raccoon proof feeders? Probably, but they cost more than I'm willing to pay.
Luckily, there is no longer a closed season on raccoons in Georgia.