Has anyone tried Fiochi ammo in a .30 cal. P210? I have a chance to pick up ammo at good price.

Haven't tried it in a P210, but I can say it is good quality ammo for my P220s (among others) and works as advertised.

No problems with the plastic gun either. The 7.65mm is a good round.

I'd say get the ammo and save the brass.

I use Fiocchi ammo for practice and have for a couple of years. Priced right and good quality.

Fiocchi makes really good .32 ACP, so I’m sure it’s good

I have run a lot of Fiocchi 30 Luger ammo through my P08 Lugers, but don't(yet) own a P210 in 30 Luger. I am a reloader and the Fiocchi brass is good to reload.

Fiocchi made 30 Luger has a low powered charge . It works well in my -5 without any issues. The system becomes a bit sluggish. It's something to get used to but nothing to worry about.
The best 30Luger type ammo for the P210 is made by RUAG Ammotec.