The .32acp is kind of neat, loading is the same as for any pistol round, just ..smaller. This may, or may not be important, but for myself, its a bit of a challenge, the only thing worse is the .25acp.
Every .32acp I can think of right now is blowback operated. So, there's no room to increase pressures safely.
Be aware that the .32acp is not actually .32 caliber. Bullets are .311" which actually makes it a .30, but there are many rounds that use a bullet of different diameter than the stated name caliber.
I spent some time looking for brass, at the gun shows, and never found more than a handful of cases...then one time, (several years ago) at one of the brass dealers tables there were several bags of 500. I bought one, and it will probably still be half full when my kids inherit it.
A little pinch of fast powder is all you need, I used 231 and Bullseye.
There's not a great deal of interest in reloading the .32acp (or the .25) and some manuals don't even list them.
Hornady makes (or made) a 60gr JHP. I have a couple boxes, but haven't yet used them, so I can't give you an honest opinion on how they work.