No, the 300Whisper, now BlackOut, was designed for suppressed, subsonic loads by JD Jones for use in the AR. It wasn't designed as a mediim/large game hunting cartridge unless you include humans. The top three hunting cartridges for the AR, using a standard bolt head would be the 277 Wolverine, 7 Raptor and 300 Ham'r. The Ham'r can produce 1800 ft-lb of ME while the highest 223 load only gets to 1100 ft-lb.