http://www.palmettostatearmory.com/
I've purchased from them at shows and at the store. I have friends who've purchased online. Any way you choose to do business, they've been great.
My first purchase was a case of WWB .308 for sighting in and hunting--purchased @ a show about two yrs ago. Excellent price and service.
I was @ the store this past weekend picking up some glock mags and .45 ACP & .25 rounds and a few random accessories. Again, excellent pricing and service.
Shipping is priced right from what I hear from a friend and have seen on the website.
Hope you have the same great experience I've had!