One other thing.
The 147 in 9mm is running right at speed of sound so depending on the length of barrel may also be making that aweful transition to subsonic at useful handgun distance. This can also really play havoc with poi vs poa.
Just another reason I stick with 115 in 9mm.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent