Thank you for all the input, user like yourselves is why I chose this forum. I would assume a few .32 cal round of any type would be enough to deter an attacker of most sizes unless it's some gorilla man like Brock lesnar or alistar overeem lol
This is true enough, as far as it goes. .32 ACP is enough for a lot of encounters. Other calibers obviously some with more power and other trade-offs, not the least of which is firearm size which means concealability which can mean whether you are armed at all.
To me, .32 ACP is reasonably effective and plenty worth carrying.
The point about "defensive ammo", however, is really that you're dealing with the extreme low end of the power/velocity band, so bullet designs that make sense in 9mm and up may not be so applicable. And remember the barrel length also adds a constraint. Not only does the .32 ACP case only hold so much powder, but the short barrel doesn't allow for the complete burn leading to increased muzzle velocity, so you don't really get to push the bullet as fast as it would need to perform.
This is a case where plain old ball will work about as well, maybe better, than more expensive/exotic loadings billed as "defense" ammo. Even if those designs perform in other calibers, they really don't in .32 ACP.
That said, I still have a few boxes of silvertips and have never had a rimlock in over 500 rounds, so...