I usually carry 165 gr. Gold Dots or Golden Saber in my Glock 23 but have no problem with using 155 gr or 180 gr.
Same analogy goes for my Glock 21 and 36 in .45 ACP. I prefer 230 gr. Gold Dots or Golden Saber but will use 185 gr HP if that is all that is available.
Proper shot placement and the one on the receiving end will not be able to tell the difference as to what weight HP bullet you are shooting them with.
FMJ are for practice only for me.
I do not and would not carry a semi-auto for self-defense if it would not reliably feed HP ammo.
My 1964 Browning Hi Power reliably feeds Federal 9BP 115 gr JHP and is still in the carry rotation because of this fact.
Life's to short and to valuable to carry second best ammo.