I take exception to the argument that a larger, more powerful cartridge some how makes up for poor shot placement. I've seen many, many people with 30+ calibre magnums make piss poor shots on stationary targets only 100 yards out, on a range, with their rifles bench rested. I have no idea how well these people shoot under field conditions at game animals. The "I can reach out, touch them far and hit them hard" argument falls flat if you can not aim and hit your target properly. Use whatever calibre YOU are comfortable and capable of handling. If that is a magnum, then so be it.
Back on topic. The original post asked if the .243 Win was suitable for whitetail deer. The short, short answer is yes. See post #4.
Back on topic. The original post asked if the .243 Win was suitable for whitetail deer. The short, short answer is yes. See post #4.