The .45 was originally designed to use a 230 Gr RN (I buy the extreme 230 RN from Wes) and that is what it likes. I myself use 6.0 Unique, COAL of 1.270, Lee factory crimp 1/2 turn..........goes bang every time and very accurate. 45 is a very easy reload. I have loaded and shot thousands of these. I don't reload many hollow points simply because ranges are getting to where you can't fire them at indoor ranges because of the catch systems. I am at the range at least 4 times a week (retired so nothing else to do) and our indoor range is a rubber catch system. Just my opinion and nothing else.............enjoy! Have fun and shoot straight.