00-Buck is what I load for family members in hiding. Used as a backup just in case the BG's are luckier than me. 12 ga. 2 3/4" = 9 approx 38cal. pellets. 3" = 15 pellets. I have lots of 3 1/2 steel "T" shot but not for first use because steel doesn't deform like lead thus less shock value, plus i don't want recoil to inhibit follow up shots if needed. I live in the boonie's so the nearest help is usually 10 to 15 minutes away.