I was hoping at least one person would suggest the limit is where hunting bullets don't reliably expand for a given caliber and quote that in FPS, maybe for the .243 and even other calibers.
Alas, no.... As an American, you can legally take the longest shot you are inclined to.
Well Dumphuck,
In the state of Wyoming where Burns' friend took her elk, a .243 IS legal.
You are a stone, cold IDIOT.
And by your last comment, a Fascist prick as well..