CLEETUS,
I prefer 115 to 124 grain ammo in my 9m.m. I use +P or +P+ unless it is unavailable, a problem when I lived outside the U.S.
The 147 grain ammo is in the same weight/velocity range as a +P .38 Special. The 115 grain +P+ loads are just as fast as the 110 grain .357 magnum loads. I will take a .357 over a .38 +P any day.
Also, when my agency used 9m.m. pistols, we never had any complaints with the +P+ ammo. It had excellent stopping power proven in real gunfights.
Our revolver round was the .357 magnum and the .45ACP was permitted in personally purchased pistols, so we had a good point of reference.
When we went to a single gun and round, we went with the .40 S&W with 155 grain jhp. The heavy 180 grain .40 S&W was not even considered after it was tested.
Jim