I always take a cleaning rod (long enough for the barrel of any firearm with me) when I shoot at the range.
Once, I had some factory that had my 9mm acting like a black powder firearm.
The biggest problem was not knowing when the bang would come after the click of the hammer hitting firing pin.
This was ammo that was in my home defense 9mm and may have gotten contaminated by oil.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)