Originally Posted by Memnok
I did some reloading for about a year or so in 1993/1994. Back then, the net was not a place you could access the wealth of information that is here today. I've been reading a lot as I re-enter the reloading world, and it sounds like 231 is one of the more popular 40 S&W powders. However, I too chose to go with the slower WSF to keep the pressure down.
For minor loads, W231 is fine. For major loads, you have to push it harder than I am willing to. WSF will get you there safely.
"Given adequate penetration, a larger diameter bullet will have an edge in wounding effectiveness. It will damage a blood vessel the smaller projectile barely misses. The larger permanent cavity may lead to faster blood loss. Although such an edge clearly exists, its significance cannot be quantified".