I just enjoy learning. You can easily get the "old" velocity standards with out reaching +P pressure, using today's powders. Much of the store bought lead, swc/hp available today is a bit harder than yesterday's, to reduce leading. I prefer a Hornady 140/XTP, but that might change if i ever start pouring my own lead. Either way, it's about education, fun, and history for me. For defense, I use a commercial load.