Don't have a favorite. Usually start with the guide for the bullet manufacturer I'm loading and compare it to other guides to find a starting load. Sometimes there's a large discrepancy like I found recently when loading Berger 52 gr bullets in a 22-250. The listed max load for H380 in the Berger guide is a few grains less than data from several other sources so I started at the max load in the Berger guide and have worked up from there. The Berger max load yielded significantly less velocity than listed, which is what I suspected would happen.
