Great thread, Brother.
Here's a few I can think of at the moment;
* When using silencers remember that they slightly affect the ballistics of your weapon, you may need to re-align your sights for maximum accuracy.
* Hollow-points does have better stopping power, but they are no good against hard targets! (Such as a homer clad in leather and body-armor.)
So it's a good idea to have both hollows and AP rounds in the magazine.
* Always keep one in the chamber and never use the safety like some stupid sissy, because in a self-defense situation, it could cost you your life.