All of these are in the Columbia/Lexington area of SC.

In Lexington there is Defender on Hwy 6 and Lexington Guns and Shooting Range on Hwy 378.

In South Congaree there is Midcarolina Rifle Club.

West Columbia has Shooter's Choice.

The Harbison/Columbia/St Andrew's area has Palmetto State Armory's new facility.

I'm sure there are others I'm unaware of too.