Sig is doing it again, creating solutions to problems that don't exist? I don't know what to think, but willing to give it a try and hope to maybe see some ballistics test in the future.
www.outdoorhub.com
Interested in giving both sub sonic variants a try out of my 12.5" SBR, when I can spring my first can out of jail anyways.

Innovative New 300 Blackout Ammunition From Sig Sauer | OutdoorHub
I’ve always been a fan of 300 Blackout, mainly because it’s a ballistic geek’s delight. The ability to swap between supersonic and subsonic performance simply by changing magazines the availability of loads ranging from 110-grain rockets to 240-grain bricks is compelling features. That’s a lot...

Interested in giving both sub sonic variants a try out of my 12.5" SBR, when I can spring my first can out of jail anyways.