FM Hi Powers are military spec. guns, they are intended for hard use with NATO 9mm.
FM tests them with 50% overload rounds ( that’s some really hot stuff!) before they leave the factory.
Hi Powers are extremely popular here, the most common auto to be found in gun shops, sometimes sold as ex cop or military surplus.
Due to the crisis people use reloads almost exclusively, some of doubtful quality control.
Do you know how many kabooms, or even cracked slides I heard of so far, regarding FM Hi Powers?
Nothing, zip, nada.
Use +P on your FM Hi Power without a care in the world, if it’s an older FM, even better. The worst thing that can happen is that it wears out faster, which means it will last 3 generations of constant use instead of 4.
Even then, with a steel slide and frame and that chromed barrel, some simple spare parts will set it back on track.
Use normal ammo for practice mostly, and just a few +P for familiarity and for carrying.
Your FM will last forever that way.