12 gauge #00 & #000 buck recipes for Winchester 2 3/4 AA shells?

Looking for recipes. Seems I can’t find all the components needed for a load of 00 or 000 buck. Unsurprisingly.

I have a couple thousand Winchester AA shells on hand so recipes for those are especially useful.

 

2.75 inches of #00 is a classic.

 

Are you talking about loading data or components? All of the major reloading companies publish data books. Reloading components for everything are hard to find right now. If you are saying that you have loaded birdshot on hand that you want to turn into buckshot (because it's scarce as hen's teeth as well) you can buy casting dies for whatever buckshot size you want and cast your own.