Powders matter. Bullet brands do not. Bullet weights do.
Buy the Lyman book. Has more loads using more powders and bullet weights than any bullet or powder makers book. Those are fine(Lee tests nothing themselves. Their data is mostly from Hodgdon), but only have data for their own products.
QuickLoad is not a manual. QuickLoad is not a reliable source for tested data. QuickLoad is a program written by programmers who for the most part do not shoot. QuickLoad is nothing but theory.
Buy the Lyman book. Has more loads using more powders and bullet weights than any bullet or powder makers book. Those are fine(Lee tests nothing themselves. Their data is mostly from Hodgdon), but only have data for their own products.
QuickLoad is not a manual. QuickLoad is not a reliable source for tested data. QuickLoad is a program written by programmers who for the most part do not shoot. QuickLoad is nothing but theory.