I've never seen nor heard of a deer hit well with a 243 getting away, regardless of bullet. I shot core-locts and powerpoints when I was a youngster out of a 243, all hits just rear of shoulder, animals down either immediately or within 10 steps, no exits, ranges to 200 yds. Seemed as uncomplicated as it gets to me then.

I belong on eroding granite, among the pines.