There are absolutely NO substitutes for shot placement and bullet performance!
A well constructed and well placed bullet from a 270 or 30-06 will kill a big bear as quick as any caliber
I wonder if this statement is specific to “hunting” an un-wounded, calm bear as opposed to what you would choose to protect yourself and others from an enraged charge?
I absolutely understand if it’s the first but would be especially curious if your lifetime of experience has convinced you of the second as well.
Thanks for being here.