bo....you're going to love it.I have used factory Remy 405 sp,which do very well.But,reloading is where it shines.Using Sierra 300 gr. jhp's over several different powders (RL-7,Varget,H-4198,IMR-4198) I found I like Varget and IMR-4198 best.I loaded Remy 405 sp's with Imr-4198 which I like best for them.......have fun.........Rick