Sure, plenty of rifle. Watch out for "varmint" bullets when you want "game" bullets. Some .243 rds are intended for fast, dramatic expansion and not really appropriate for bigger game. A varmint slug to the head or neck would likely work fine, but thats a pretty selective shot.
Bamaboy and myself have been using the .243 a bit on deer and I am much impressed with the round in general. We're shooting 100 gr Partitions. I would likely use the same on hogs myself, in case I got a shot a a really big one and could not spine or brain it.
Sure won't bounce off.