Possessing said that, I preferred a person of each and every caliber so any ammo would be great ammo when the next stress comes about. 9mm is more than enough. Bond makes use of a 9mm Quick: aka 380 auto.My dad fought in WW II, Korea, and Vietnam. I did two excursions in Vietnam, and my son was a Navy SEABEE. ALL of our ammo above Those people yrs