Tyler, I also agree with the 4 gr. of unique load with the 158 gr cast...but I will also say I have not used the red dot or 5744 with the 158 gr. cast...I use unique or bullseye (because I have a lot of it to use!)....I use this in a .357 case not the .38...Based on my own experience, I would be careful with those loads....They have a tendency to "bounce off trees and rocks" and sometimes come straight back at you!...But I find them use! Good luck

edit...should be around 675-700 fps