I found that the .416 Rigby is the perfect porridge-protector when two enormous Alaskan Brown Bears charge your camp as you are eating breakfast. The 350 Swift A-Frame completely overwhelmed the 10'+ boar, as if he hit an invisible brick wall. Sow decided that the .416 was NOT to be messed with, porridge could wait, did a 90 and headed to the forest. Thinking back on it, I never did finish that bowl of porridge...
The .416 launches a 350 grain bullet about the same speed as an '06 launches a 180 - that might indicate what it will do. I zero 2" high at one hundred, bullet is 2" low at 200. Makes for a nice hunting rifle but it is a little hard on scopes and shoulders.