Hello
Most of the 9mm reviews that I did were shot with two guns.
A SIG 365 SAS, with a 3.1*** barrel and a Taurus G3 with a 4*** barrel.
First I do forensic exam of the ammunition. Next I shoot a group while chronographing with each gun. 10 yards with the SIG and 15 yards with the G3. Chronograph is a Oehler 35P
Then the ammunition is shot out of each gun into a 55 gallon plastic barrel of water. The bullets are then recovered, photographed and then measured for expansion. In cases where the bullet fragments and loses its jacket, a weight is taken with all the recovered material and also a weight taken with just the lead core.
Here is the link to all the photos of the review;
9mm Aguila 124gr JHP — Postimages
Here is the data sheet;
Here is a link to Aguila's website;
9MM Luger 124 Grain - Jacketed Hollow Point | Aguila Ammunition
The velocity wasn't quite up to advertised and accuracy was fair.
But even with less than expected velocity the bullets expanded well in water.