Cheerios for buffer helps give the lil birdies some fiber and keeps their heart healthy.
I 2nd the Ballistic products loads. They are great.
I pour my own 00 buck shot and Size F buck shot. I get a kick out of crow hunting with the smaller size buck shot. And play with different wads and powders often. Right now my favorite is a Green Duster wad 9 pellets of 00 buck shot and some cheerios setting on 17.6 grains of 700X. But this is in 2 3/4" shell. Have not tried 3" yet.