I've loaded a substantial amount of it in 9mm and 380, very little in 10mm, It could be a tad quickly for my favored velocities in 10mm, most likely a good selection for midrange/SD loads. Hornady’s FTX bullets are hollow details which are great for modern-day shooters. Built to Have https://handloadingsupply.com/product/572-winchester-smokeless-powder-1-lb/