Bart has been one of the top competition bullet makers for many years. I met Bart at the BR Nationals in about 1994 or 95. He traveled and shot with his Buddy, Billy Stevens. At the time they were both US Army helicopter pilots.
Bart is shooting his own 105 Hammerhead bullets. http://www.bartsbullets.com/gungnir-105-grain-vld.html It appears that he has renamed them.