https://shootersworldpowder.com/
Their data is there. Compare the data for different powders.
I did and decided my Silhoutte, PowerPistol, BE86, CFE Pistol, Longshot already met my needs better. And they are all in that same $20 per pound range.
If you want a perfect powder for 40SW go-fast hit-hard loads you want Longshot. It will do 1199 fps with Barry's 165s. http://www.hodgdonreloading.com
I so no reason to buy their Auto Pistol or Major Pistol.
I’ve had very good results using their Blackout in my .300BO’s with 110gr Vmax. I’m not going to say use it exclusively because I don’t think it’s that good. It’s a good practice powder for me.
I’ve used them. they’re pistol powders are VERY similar to the Accurate brand. I would use the Auto Pistol powder, which is similar to AA#5 for the 40 S&W. It’s what I used.