Misfires, Hangfires, and Squib Loads
This occurs when the trigger is pulled and the firearm does not fire. It's caused either by a weak firing pin or a defective primer that fails to ignite the powder charge.
This occurs when the trigger is pulled and the firearm is delayed in firing. It's caused by a temporary failure of the primer to ignite the powder charge.
Squib Load or "Pop Fire"
This occurs when the trigger is pulled and you hear only a slight pop and do not feel any recoil. It is usually caused by not having a powder charge in the cartridge or shotshell.
When any of these occur, keep the muzzle of the firearm pointed in a safe direction and hold your position for at least 30 seconds. Carefully open the action and remove the cartridge. If the primer is indented, the cartridge should be disposed in a manner that cannot cause harm. If the primer is not indented, your firearm should be examined by a qualified gunsmith and the cause of the malfunction should be corrected before further use.