I have been reloading on a friend's press for a while, about ready to set my Dillon 550 up. I use the loads my friend has worked up when using his press. But, reading on different powder burn rates for different calibers and other such details has clued me into the fact I need more information. So, what would you folks consider the top one or two reloading manuals? If it makes any difference, I reload handgun only.