Choosing the right carry ammo
There is a lot of different hollow point ammunition on the market. It can get overwhelming with many different loads from many brands. When choosing carry ammunition to protect yourself and others we are looking for something that has good expansion and 12 to 18 inches of penetration in ballistic gel. These two criteria are to ensure that the projectile expands to cause the most damage possible in order to stop the threat and penetrate deep enough to contact organs but without going through the body to ensure they don't hit an innocent person behind the threat.
Lucky gunner published their testing of many common hollow points in most common calibers in ballistic gel to see how they would perform relating to self defense. Their test includes .380acp, 9mm, 40s&w and 45acp. These can be found at this link https://www.luckygunner.com/labs/self-defense-ammo-ballistic-tests/. The test for .38spcl and .357 mag can be found at https://www.luckygunner.com/labs/revolver-ballistics-test/. The test for ..357 Sig can be found here https://www.luckygunner.com/labs/357-sig-gel-test/. The 10mm test is in this link https://www.luckygunner.com/labs/10mm-auto-self-defense-ammo-ballistic-gel-tests/.
The charts on their website show you the testing for each individual round of the five rounds fired of each load that they tested. It is very in depth. They report velocities for each of the five rounds to show how consistent or inconsistent they are. They show the penetration and expansion for each round. They even take a picture of all five projectiles from the ballistic gel in order to show the consistency of expansion. Once you have found a load that you think will work for you, it is important that you go to the range and test it in the gun that you plan on carrying to ensure it's reliability in your carry gun. This will also give you an opportunity to see if that carry load actually shoots to your point of aim with your sights. Many times the deviation from your point of aim is not much but in the case that it is you may have to either change your sights to zero with that ammunition or choose a different carry load.
Have a great and safe weekend!