Is a 9mm a good defence gun?

Answer 1

this is very controversial subject my father believes a 9mm is a great defense weapon. the problem i have with this caliber is that it velocity is to fast, this means the bullet has the opportunity to travel straight through the target and hit what ever is behind the target. a 45 is slower and heavier bullet. this means that when the bullet hits the target, it delivering all of its kinetic energy when it hits the target. Allowing the shooter to use one bullet rather than 2 or 3 bullets from the 9mm

The 9 mm is good for killing from a long distance, but yea if your getting attacked an you shoot the attacker it will take him down.