Gordon
Member
It was JD Jones, a senor momentI believe the .300 Whisper was developed by J.D. Jones of SSK.
Larry Kelly of Mag-na-port hunted with it extensively and did a lot to popularize the round.
https://www.americanrifleman.org/articles/2012/11/5/shades-of-gray-300-whisper-300-aac-blackout/
"The .300 Whisper was developed, documented and trademark-registered in 1992 by J.D. Jones."
and just think of the .300 BO as an AR pistol round and it all makes great sense !