Octane 45 on Silencerco barrel G23

Tried out the new SiCo G23 threaded barrel with the Octane 45 and it's much more pleasant than supersonic 9mm through the can. This was 180 gr American Eagle hard ball but I also shot 180 gr WWB and about 50% of both were sub sonic. The tone was deeper and there was a noticeable difference in how much quieter the 40 is over the 9, even when the 40 was supersonic.