Sorry to get off subject bigbulls, lol. Didn't mean to honest

. I have thought about that before concerning how much power per pound is lost when you start getting into the larger animals. The cartridges seem to get smaller per pound. Thanks for the comparison though.
And on the subject of calibers for deer, I have considered the .257 Roberts to build on my Czech VZ 24 action I have, to fit right between my .223 and .30-06