I shoot a 20 ga almost exclusively. Here is my load for EVERYTHING.
Federal or Estate flat base 2 3/4 inch hull.
22 grains of Hodgdon HS-6 powder
Remington SP20 wad
1 1/8 oz of shot. 6's for turkeys, roosters, chukars, huns, and grouse. 8's for quail and doves.
The reason I shoot this load for everything is cuz I've shot it so long now I know exaclty where it's going and what the lead is on every bird I may encounter. One of the biggest mistakes I see guys making is changing up the load they shoot on differnt hunts and birds. It makes it very hard to learn and establish the right lead on any given target. Find a load that works well for all the birds you're likely to find and stick with it! :wink: