That is the one ga that it is worth loading 4 buck in. As long as you can get hard shot. I also loaded Hard lead T shot(.20 ) in the 10. Kill a goose waaaayyyy out yonder. . as far as the 4 buck and crows...just think..if ya hit him it probly gonna bring him down. 10 isn't so bad in a semi auto though. Ithaca Mag 10..full choke and 4 buck. 4 Buck is .24 cal ya know. I even tried F(.22) shot..but could never get it to pattern well..even out of my 10 ga guns. Good hard mag 4 buck patterned ok out to about 60 yds out of the 10 and the T shot patterned really well out of my SP10(75% patterns at 70 yds)...and ok out of the Ithaca Mag 10... about 60% at the same distance. I shot a lot of 10 ga shells in the past looking for the magical 90 yd goose load. Almost had itat one time. But It was really hard to figure the lead on a goose that far
BTW forget them ibro'''ibupr...aw heck them dang pills. Just gimme the drinks