Have been studying the most recent book by Marshall and Sanow regarding stopping power of pistol bullets for self-defense.
.44 Special does not fare too well in comparison to others.
The problem seems to be too much weight, not enough velocity, and not enough bullet expansion. Meplat size does not seem to be a factor- maybe even a negative if it reduces tumbling on impact. It seems the closer one gets to around 155 grains bullet weight and 1000+ FPS the better one is with regards to the correct amount of penetration, etc.
From what I'm seeing on these forums is that there is a problem with getting accurate .44 Special bullets below say 180 or 200 grains? So, can a cast bullet of say 165 grains be made that is accurate, is a hollowpoint for good expansion as low as 800 FPS up to say 1000 FPS at normal pressure, and made of as close to pure lead for the same reason-expansion?