I've bought the books from editions 7-11. Usually B-Day or XMas it to myself for $30-40. The most utilized manual for my loadings. Never have I had a dangerous load following their data. Matches safely with Sierra, Barnes, Noslers, and Hammers.They sell me the bullet, the loading tools and I have to buy their loading book? No Thank you! I'll stick with companies that share load data for free! That is My New year resolution!!!