An explosion goes off at the start of the night shoot on the main firing line at the Knob Creek Machine Gun Shoot and Military Gun show in Bullitt County near West Point, Kentucky.

People fire machine guns on the main firing line during the Knob Creek Machine Gun Shoot and Military Gun show in Bullitt County near West Point

Women running a bake sale wait for customers inside the Knob Creek gun shop at the Knob Creek Machine Gun Shoot and Military Gun show in Bullitt County near West Point, Kentucky.

Vendors watch shooters at a machine gun rental stand during the Knob Creek Machine Gun Shoot and Military Gun show.

An employee uses a flame thrower as an explosion goes off during a shooting session at the Knob Creek Machine Gun Shoot and Military Gun show .

A boy walks through destruction on the main firing line during a break in the shooting at the Knob Creek Machine Gun Shoot and Military Gun show

An employee speaks with a customer inside the Knob Creek gun shop at the Knob Creek Machine Gun Shoot and Military Gun show in Bullitt County

A man looks at gun parts at a vendors stand at the Knob Creek Machine Gun Shoot and Military Gun show.

A father and his two sons speak with a vendor at the Knob Creek Machine Gun Shoot and Military Gun show .

Visitors explore destruction on the main firing line during a break in the shooting at the Knob Creek Machine Gun Shoot and Military Gun show.