"...obtained hits with all..." That'd do it if Yogi was close enough and all 9 went into his head. Everybody gets lucky.
As I recall, .44 Mag is the minimum suggested for keeping yogi away though.
No amount of ballistic gel equals the skull of a big bear. No amount of BG equals any part of a PO'd bear. Ballistic gel supposedly mimics people, not critters.
Oh and a Buffalo Bore(who re busy using this story in their marketing) 147 grain 9mm is +P at 1100 FPS. There's a lot of conflicting data on their site.
https://www.buffalobore.com/index.ph...t_detail&p=389