I started hand loading in 2013 when the artist formerly known as Rockhound (
@FARMTOFIELD) tempted me with badass 20 gauge patterns that were absolutely unfathomable before the emergence of TSS.
As others have alluded to, Hal Abbot is a national treasure in this department. He helped me a ton when I got started. But there are other good ones out there who sell shot and have developed great loads. There is not a single bad thing I can say about Hal or any load he has ever given me, and I still use one of his loads for the .410. But, my absolute all-time favorite 20 gauge load came from a Louisiana guy named Ronnie Savage. And my 12 gauge load (before I quit lugging that damn thing around) came from a Middle-Tennessean named Tommy Duliba. Basically, these guys are reloading/ballistics junkies who develop their own loads and send them for ballistic lab testing to ensure safe pressures. If you buy shot from them, they will generally share the load data on the condition that you not share that data with others. Honor system. For that reason, those of us who hand load wont be able to give you the recipes. But anything else you need, including contact info for the guys mentioned above, feel free to ask. I'm always happy to nerd out about it.