For mine it works great with any ammo. For carry I use Wolf Military Classic FMJ. It is what I could get a while back when I ordered 1k rounds. That will last me a long time seeing as how I shoot 7 to 14 rounds a week to stay proficient with it. For mine I drop the mag, and then eject the chamber round. The slide pull back is not a good indicator of feed reliability. Take it to the range and shoot it. Take a box or two of ammo, and shoot the crap out of it. Keep repeating. Mine has never ever jammed or failed to properly feed. It is my pocket gun.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.