When a cartridge fails to fire you should keep the gun pointed in a safe direction and wait how many seconds before carefully unloading the firearm.?

When a cartridge fails to fire, you should keep the gun pointed in a safe direction and wait at least 30 seconds before carefully unloading the firearm. This waiting period allows any potential hangfire, where the round may fire after a delay, to pass. Always prioritize safety and handle the firearm with caution during this time.