Check out Mid Carolina Rifle Club, website (I believe) is Mid-Carolina Rifle Club
This is located in South Congaree just outside of Columbia. There are plenty of ranges and out 100& 200 yard range is currently enjoying a great makeover. There are a lot of shooting diciplines involved with this club.
To join, you must be present at one of our monthly meetings and then show up for a range safety briefing. Currently dues are $100/year but that is likely to increase tp $130. We need to pay for certain safety issues and normal range maintenance.
If you live over a certain number of miles from the range and I can't recall the number, the cost is cheaper.