Interesting, though OT, I can't see much of a use for the BO, unsupressed, if I"m going supersonic, there are lots better choices, IMHO.
Good luck. A buddy does the same, runs the 110 Barnes in the round.
The 300BLK is a ton of fun to shoot subsonic, super sonic and both suppressed and un suppressed.
The versatility and the fun factor make the 300BLK a joy to shoot.
While there are better tools for specific jobs, the BLK is very well rounded.
I have several AR-15's and the BLK is the one I use the most.