I am looking I to starting hand loading. Read, read, and read again. Reloading manuals are the way to go. They have all the info you will need, min to max for each round. Bullet weight and powder charge differences. Best thing to do is read, the experiment. Lower weight bullets allow you to use less powder, Thus stretching the amount of rounds you can make. From all of the research I have done, it all really comes down to personal preference, and what the actual firearm likes best. Your firearm will be your best indicator