I had actually just started reading about subsonic and supersonic ammo, and frankly a little lost. Mind you...I studied music in school, so anything science was a little out the radar for me Oh what I'd do differently if I knew what I know now back in the day. Needless to say, all this is very intriguing to me, so I'm excited to learn.Standard pressure 147’s won’t break 1050fps (lower threshold of sound barrier, under normal conditions), even out of a 10” barrel...so no sonic crack when shooting suppressed...very quiet.
147’s often feel “softer” shooting...the recoil impulse is more of a push than a snap..that may be why you like them. I’ve often found they also have better accuracy than 115’s.
My preferred defensive bullet weight in my 9mm's is 147 for those reasons.
Your explanation of the feel of shooting a 147 vs 115, and accuracy is exactly what I felt. I thought my aim was just getting better, but then it was a total different feel when I went back to the 115. Without even knowing why, I changed my EDC ammo to 147gr that day...glad I followed your lead