Please provide the following when creating the Ticket:
**Game Version number: 1.4.0.48**
**Modded?:** No
9mm rounds seem to have incredibly low penetrative capability. It cannot penetrate through wooden doors which it should easily pass through being such high velocity, especially as the ammunition are jacketed rounds. It can shoot out some windows but in some cases the rounds are stopped cold as shown in pics below. (House classname below which has impenetrable glass.) Even 9mm hollow point should be able to shoot through doors with the exception of if they are made of ironwood or some such!
They seem to even have problems penetrating the SSh-68 Soviet helmet at point blank range. It will go through but seems to slow it right down to dealing minimal damage.
This video is shooting a SSh-68 using a 115 grain 9mm round from 10 feet or so away. The first round hits the rim and is stopped, the second round goes straight through on a more centre hit. From the technical data I've found, the US Army M882 9mm 112 grain so pretty close to this test.
https://youtu.be/Muec8Q2Lu6U?si=02sydTGxAEmX8R_d&t=254
It's not AS vital as other rounds as currently the game only uses 9mm for pistols, but for any modded weapons using vanilla ammo, like submachineguns, they end up being severely weakened by this.