Difference in noice reduction with supersonic load?

[milehipo]

I have a 10" 1-8 twist AR15 upper. Using a AAC Cyclone suppressor. I was wondering if there will be much difference in noice reduction if I go closer to supersonic loads? Just looking to get the most accurate load to 100-200 yards.
The bullets I have are Sierra 175 and 220 HPBT
The powders I have are AA #9,1680 and Hodgen H110

[Alleycat]

The closer you get to the speed of sound the louder the gun will be. The perceived sound is noticeable but not hugely so. I try to run as close to 1050-1070 as possible. At colder temps you could start crackin. Using VV N110 reduces this phenomenon.