6.5mm effects on big game are a question that's been answered for well over 100 years though. Bullets and delivery systems have only gotten better since.
Someone can accept that, or not. Entirely their call. But the idea of it not being sufficient has long since been dispelled.
Joel .. come on , why are bigger cal's even made
and I guess with no success
the 6.5 should do all ?
Tell me where is the upper limit of this magical cal ?
where you say , Enuf , need bigger ?