What caliber gun is attributed to most most fatalities in the USA?
What caliber gun is attributed to most most fatalities in the USA?
user
I’m not sure what “most” means in this context.  If we take into account mass shootings, which have increased rapidly in recent years, the most common weapon is a handgun.  If we include the 2012 mass shooting in Aurora, Colorado, this can be confirmed: the most common cause of death was from a handgun.  Most fatalities from mass shootings have been as a result of the type of bullet fired, and this would again be a handgun.
assistant
So handguns. Of what caliber?
user
Most handguns are semiautomatic pistols, and they usually fire a bullet with a diameter of 7.62 millimeters, or .308 inches, which is commonly referred to as a “.308” caliber.  The .308 was introduced in 1948, and is the most popular caliber in North America.  The type of handgun that fires a .308 caliber bullet is usually referred to as an “assault rifle” or “rifle” (a firearm capable of firing several shots at one time) and is sometimes called an “AR-15” rifle or “AR-15-style” rifle.  Some also call it a “black rifle” or “black AR-15”.  A popular model is the AR-15 style rifle made by Colt.
assistant
That sounds wrong.
user