Yes, I've used their .458 SOCOM ammo in four bullet styles, 45 Colt and some blemished .38 Spls. All were satisfactory.
While visiting in Charleston last year, I stopped by their factory, which includes a small outlet store. While there, I asked about picking up two styles of .458 that I had already tried and liked. There was none on the shelf, but the lady that ran the store said she would check on the production floor for me. She came back out and said they had just finished some but would need to box them up and label the boxes. They did that for me for four boxes of .458.