I have 2 revolvers and 2 semi's. All have been 100% so far, after hundreds of rounds through each.
The EDC ammo thatI carry has been well tested through each handgun. I buy ammo and reload my own so there is always a bag of mixed rounds left over after a while. The left overs get mixed up and loaded at random into the handguns and so far no problems with any.
The only problems I have ever had were with some reloaded wadcutters that I bought at a range and that was before I learned better. New ammo or my own reloads form then on.