I have been loading for my 300 whisper since I purchased it. I am loading a Berger 210 VLD with 8.2 gr of Lil Gun (barrel twist is a 1/7), and it is putting them out there at 1050 fps. Is anyone here loading for the 300 whisper to be supersonic, and if so please share some of your knowledge with me. Thanks,
C.
C.
