I just purchased a XD SC 9mm. I went out to the farm and shot the first 40 rounds using 115g remmington. It fired everyone and cycled everything fine. I've been dabbling with reloads and have made up some Berry's 115 grain with re-used cases, CCI primers, OAL of 1.125" using Bullseye powder.
I made three batches of bullets using 4.0 grains, 4.3 grains, and ~4.6-4.7 grains (getting both readings on the scale). I put the lowest rounds in a mag and loaded up the gun. using the 13 rd mag all but 5 seemed to fire in the weapon. The others did not fire so i manually cycled them out. I put in the 4.3 grain rounds i made up and began to fire again. I had the same issue on say 3 of the 13 bullets this time as well as a failure to eject (case got caught in slide as it came forward). So i put in the 4.6/7 rounds and shot those. I don't recall having any (might have had one) not fire, and i had one failure to feed again.
It cycled the factory ammo great. so i'm assuming the issue is linked to my reloads. I did boil the dirty cases in soapy water and then clean them in a towel and let them dry. i don't know if this would cause any problems? I reloaded the following day after this so i would assume they were completely dry.
It looked like, on the rounds that did not fire, that the primers were not hit as hard as they normally are on other spent cases. I never did put a failed round in again and try to shoot it again. i'm not sure if this was an issue or not.
If anyone has any ideas or things for me to check let me know!