This is strait out of my shotgun reloading manual. Hope it helps.
#OOOO Buck, 85 gr.
#OOO Buck, 70 gr.
#OO Buck, 54 Gr.
#O Buck, 48 gr.
#1 Buck, 40 gr.
#2 Buck, 29 gr.
#3 Buck, 23.5 gr.
#4 Buck, 20.5 gr.
#F Buck, 16.1 gr.
#T Buck, 12.8 gr.
Sincerely,
Adam