1911 competition

Are 1911 pistols in 9mm less reliable than 1911's in 45acp?

Hi. I just got back from the Camp Perry National CMP (Civilian Marksmanship Program ) pistol matches and it was quite an experience. I competed in bullseye shooting matches back in the late sixties and seventies but haven't officially competed in the last 30 years. Watching over 500 people...