O/U 12 ga. - #7 1/2 or 8
SxS 16 ga. - #6
Several different .22LR - hollow points (36 gr. or 40 gr. brand doesn't matter to me)
Once with a 7mm Remington Magnum - 175gr Remington Core-Lokt (worked great, no feathers, no guts, just a clean breast and the heart).
Oh yeah, sometimes a .410 - #4 is all I have right now.