I also own a 243 and a couple 7mm08's. I will not say that one kills better than the other. Of course I hand load my own recipes for both and shoot both a lot thru the year.
I love comments like proper bullet placement used when talking about The 243.
Seems to me that is the object with what ever round you use from the 22 center fires to the 300 magnums. Yes there are a lot of people who use 22 center fires, Just read a article this morning on what a great round the 220 swift is on deer. Of course it was wrote in the late 1940's.
Wouldn't think any hunters I know that would aim for the butt of a deer just because they were carrying a 300 Wetherby mag.

Al