Ditto on Grady's and Allen Arms being overpriced and hard to deal with. I live in Anderson but I will drive to Wahalla Gun Shop or Freedom Guns in Greenville to buy one. Freedom Guns has a prety good reloading section also, if your interested. White Jones Hardware (the original location off Shockley Ferry in Anderson) is my third choice. They are beginning to carry reloading supplies too.
If you are interested in joining a range, I belong to Skip-J-Range. You can check them out with this link:
Otherwise, hope I helped some and welcome to South Carolina.