Try going to www.ncwildlife.org
and check out the public game land dove field locations. The public fields are managed really well and lots of folks have good luck there.
You might also want to check out some of the local trap and skeet clubs. You meet really nice folks around the skeet ranges, and often they are there sharpening their skills for the upcoming dove season. I have had several invite me to dove hunt with them at their private farms.