Some concealed carrier that are into “comfort carry” will usually carry a pistol with a single stack vs a dual stack (more capacity). Its not about just having lots of ammo, but the situation requires that you may need it. Plus the idea of using a gun for self defense is not to kill your attacker, but to make them stop attacking. Now we are back to the original question, how many rounds do you need to stop an attacker? According to Massad Ayoob he states: switch from 5-6 round revolvers to 15-18 or 20 round semi automatics; "5-6 rounds...