In 357, the Gold Dot 158 as loaded by Speer, Proload, Georgia Arms and Black Hills will pull...well, generally 1,250fps in a 4", so guesstimate another 50 to 100fps.
This is a really nice load. Good reliable expansion. BUT if you miss the guy, it has some "staying power". Maybe a bit much for apartment use. But NONE of the 357s are going to be much better at stopping in apartment walls any time soon...they're going to keep on truckin' quite some distance unless you actually hit the goblin and they expand.
In 38+P, the Winchester or Remington 158 lead hollowpoints will expand nicely too. Not as much "crash'n'boom" as the 357s, but good solid power. Figure about 950fps or a hair over, and the plain soft lead will expand at that point.
Now, you COULD go with "Glasers", esp. the "Silver Label" (larger pellet size). Right, they don't punch deep enough for some folks...but you're using a potent caliber AND a lot of barrel. They're gonna put a hurt on...and they'll break up on interior walls. The Magsafe Defender will do so even more, and with the larger steel shot mix in that caliber REALLY work well.
These "frangibles" are NOT a good choice in lesser calibers/guns. In 44Mag they ROCK. In your 6" 357, I would guesstimate they'll be somewhere between the effectiveness of a good 38+P and a good 357 conventional JHP (also shot in your gun), but they're very "neighbor friendly" where there's thin walls going on.
I would hesitate to advise frangibles on any gun LESS than a 357 6" barrel, and even then I'd avoid both the Magsafe "SWAT" superlight and the Glaser "Blue" (smaller shot pellet formula).
But you're in range of the Glaser Silver and Magsafe Defender.
OH: another option: Cor-Bon's 100grain Pow'R'Ball in 357. This WILL expand, and it'll have the least momentum past solid barriers of any of the non-frangible 357s.