I don't know how much experience you have, and what 458 means by "acceptable," but about six months ago, on this site he, shockingly, mentioned how superior the .458 WM worked on brown bear. He must believe it's significantly better than a 270 or his name would be "270." My post above suggests that a .270 is okay too. But "458" uses a "458" for a reason. It's more than the "acceptable" minimum. 270 works; 458 works better. How many BB have you shot? While you criticize others' opinions?
You are asking to be a campfire pariah by using logic quoting people's posts here. Especially since your handle alludes to having served in a combat arms unit. Everyone in MT probably already hates you for it.
