I cycled 1 box of Winchester white box 180gr JHP then over 3000 rounds of 165gr reloads with only one feed failure in my G22 gen4. My only failure was after a complete disassemby and cleaning I left it dry and the slide didn't go into battery, 4 drops of oil later it cycled perfectly again. (I oil each side of the slide, the front of the chamber/barrel, and rear of the trigger disconnect)
I would try some other ammo to find what it likes and get some rounds through it to break it in and smooth out any machining marks on the ramp. I have only run into one pistol, a Taurus .40 that I finally had to take a dremel with a polishing wheel and compound to make feed reliably.