I had a friend of that owned a pawn shop and had his FFL and sold guns. He took a brand new P89 Ruger and loaded it with every kind of ammo he had starting with a empty 9mm case. He told me take it home and if it jams bring it back, if not buy it. Which is what I did. It fired every round and feed the empty case! That is the gun in my console. But to answer your question, no I've never had it jam. Mine is probably 35 years old. though I don't shoot it with any regularity.