They get .223/5.56 in sporadically. You just have to catch it. They just got the Silver Bear in and it's a lot cleaner than the Wolf although the cheap Wolf is fine in most AK’s and some AR 15’s, you just have to clean a little more. This is the only place I have been able to consistently find bulk at decent prices. Much cheaper to buy large quantities. last week they had some really nice Corbon in 850 boxes but it was gone the same day. Looks like they are low again, just check it daily but they do have the Silver Bear and it's really pretty decent for the price, good for the range.
When they did the gun show at down town Houston, George Brown Convention Center, They sold out .223 & 7.62x39 in 1½ hours after the show opened...