Hello
Most of the 9mm reviews that I did were shot with two guns.
A SIG 365 SAS, with a 3.1 inch barrel and a Taurus G3 with a 4 inch barrel.
First I do forensic exam of the ammunition. Next I shoot a group while chronographing with each gun. 10 yards with the SIG, three rounds and 15 yards with the G3, five rounds. 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 SIERRA Outdoors 124gr JHP — Postimages
Data Sheet
Here is a product that some might say needs a bit more velocity to get more expansion from the bullets. But on the other hand, the partial expansion might result in more penetration. Looking at the expanded bullets closely it would appear that additional velocity could very well result in jacket separations.
Accuracy and Standard Deviation were very acceptable in both guns. This ammunition was pleasant to shoot.
ammoseek.com price range is $0.54 to $1.16 per round. Lucky Gunner was an even $1.00.