For me, I use 28 and 20 gauge as the standards

28 is 3/4 ounce
20 is 7/8 ounce

So I load 13/16 ounce

I use Unique powder

and a modified MEC single stage reloader

Harten Crimp

https://www.ballisticproducts.com/24-gauge-hulls/products/79/


USAF RET 1971-95 [Linked Image from jpgbox.com]