I have had great luck with Xtreme Bullets and Angela is very nice to talk with when you call. She is a shooter and offers great advice! She suggested I try different bullets for my 38 Super and sent me several different types to try.
I currently have 9MM - 135 grain RNFP (38 Super), 10MM - 155 RNFP, 10MM - 180 RNFP, 45 - 230 RN. I had problems with the 10MM - 180 RNFP not grouping very well and keyholing. I called them, aware of their problem, and sent me another 1000 at no charge. The new bullets were marked "New Profile" and they shoot perfectly!