Well All I can do is compare 2 really nice bench guns that I use with cast bullets, a .300 Whisper and a .30 BR., and under most all instances and loads both sonic and subsonic, the .30 BR. is more accurate and flexible then the Whisper. The BR case design just seems to be better for the .30 cal...and for the Whisper you really have to watch for quick pressure spikes, ask me how I know.




















































