The biggest recipe for failure has nothing to do with bullets and everything to do with the shooter.
BULLSEYE HitnRun. I don't need to argue with guys on this forum about the capability of a .243. If Byron Dalrymble ("Hunting Deer With Dalrymble," Arco Publishing 1983) said he and his sons killed over a hundred Texas deer with a .243 and didn't lose a one, well, sir, that's good enough for me.