All of these 110gr loads are supersonic, not subsonic like the guy is asking for. And they take a fair amount of velocity to expand - which drops off quickly in most short barreled 300BLK rifles which makes your lethal range usually pretty short. Look up the minimum reliable expanstion velocity for that bullet, and use a ballistic calculator to plot the velocity of your round at different distances. Not that a hole poked in someone won't still hurt, but it's a far cry from a typical expanding rifle round wound.

The only subsonic round I'd use for hunting or defense is the Hornady 190fr Sub-X. It's the only one designed to expand at subsonic velocities, and it runs great in my 300BLK. Even that acts more like a heavy pistol round than a real rifle round, but it's way better than a FMJ.