What calibers are suitable as defensive handgun calibers?

10mm
10mm
10mm
380 only with an excellent hollowpoint or the fluted high velocity ammo is the bare minimum, nothing less ever. 9mm with a good hollowpoint. anything bigger is better.

you are mentally retarded.

If srs, the amount of people who went to jail for carrying a 10mm can be counted on a bad carpenter's hand.

...

Why would you pick .40 over 10mm?
Given that all other aspects stay equal: On hot -high speed- loads, the shorter case will need a slower burning powder to reduce the pressure spike. Having a shorter case also limits your max performance with high end heavy rounds (Buffalo bore-like). If you want to mimic .40 power with a 10mm the kick will be less snappy.
Other than cost (around 3-4 cents more per round), there is no practical reason to go with .40 over 10mm.

While you're at it, tell us about how great of a feature grip safety is.

Why do I need to tell you something everybody already knows?

Just once is more than enough for me, a responsible law abiding gun owner.

40 is still fine, you can get cheap police turn ins in it all over the place. Its recently fallen out of favor, so everyone is trying to shed their stock. If the ballistics really bother you with 40, you're typically just a barrel swap away from 357 sig.

Words don't mean much without power to back them.
For example Independence Day in Poland is allowed without (((international community))) declaring us North Korea 2.0 just kvetching about 60000 nazis in the Capital city, but there's no way we could remove Stasi BND or CIAniggers from courts or the army.
And even thinking about starting a nuclear program so that both Russia and USA have to rethink their strategy of nuking entirety of Poland as area denial tactic for the other side, would end with a swift liberation

t. butthurt kraut about his overengineered gun losing both wars (^:

How does caliber choice make you go to jail, ( in a non cucked country that is)

It's fuddlore, hence why it's in a Strayan baitpost fellating the 1911. One guy in AZ got briefly convicted after using a 10mm in self-defense, because the prosecution tried to argue he was using a "bullet more powerful than what DA POLICE had." It's the only real case of anything like this happening, and it was overturned not long afterwards.

30-30 is the best ammunition for home defense and small game.