Lyman is a decent resource guide in the front part of the manual but the data is about 15 years old. Any components newer than that time is not covered and many in the manual have been long discontinued. Again, the reference/how to/instruction part is fine but the data not so much. I would pick a 5th edition up but check with the powder company websites for the latest data.
Personally, I have Lyman, RCBS, Hodgdon, Reloading for Shotgunners, specialty manuals from RSI, BPI, as well as any freebie printed books that one can still find. The websites are still the most current but I am of the age that I prefer paper.
