I would like to echo Mr Horton's last post.

Acquire numerous manuals, even / especially some of the older ones. There is a great deal of information available throughout. Go online; each of the major powder and bullet companies have data available online. In some cases loading data on a companies web site differs from their most recent manual. The reasons for the variations that exist between manuals is that each rifle is a unique situation unto itself, my pet load(s) may be poor performers in another rifle. I have one rifle which to shoot it's best must be sparkling clean and have a cold barrel, another which needs at least 15 rounds through it to group well, and which I don't clean until acuracy starts to drop off; 350 rounds plus.

Reloading is a way to get to know one's rifles in great detail, in my son's LE we can change point of impact dramatically (vertical and horizonatlly) with different reloads. Don't deprive yourself the joy of experimenting, and for safety's sake check every load you get off of a forum; even one as informed and reasonable as this, againast a reloading manual. GRF