I fired the second round and the tumbler would not turn. The recoil of the previous dishcharges had caused the remaining bullets to separate from the casing slightly and protruded beyond the end of the tumbler and into the frame of the gun, thus preventing the tumbler from turning to the next round. In fact, the gun was totally disabled until we found a rangemaster to force the bullet back into the casing with a small hammer....then the other three bullets had to be repaired in the same manner.
And, it turns out for some types of calibers this is more common...especially the higher pressured rounds because they cause more recoil.
I am not saying auto's are any more reliable....but I can recover from a failed round much more easily with an auto.
Handguns are mechanical devices and rely on the quality of ammo being fired in them and will fail from time to time....that is a fact.
I put the choice of revolver or auto into the personal preference column. I prefer auto's because they are thinner for IWB carry and I can carry more bullets.