I usually carry a revolver. If it's new and you shoot a couple of boxes and don't have timing or cylinder lock ups you are good to go.
Semi's are another story. I have a CZ 75D PCR that fed FMJ's fine but would hiccup on HP's - one every two or three mags. After examining the jams I noticed the HP's were catching on the top of the end of the barrel (opposite the feed ramp). I slightly ground and then polished the top and it's shot over 1200 rounds without a hiccup since. To me that's reliable.
But don't overthink it, and know how to clear the jam, even if you never experience one in regular use. Practice practice practice, and assume it will be unreliable.