There isn’t any footage of Babe Ruth’s longest home run, but in 1926 they said he had hit a ball over 600 feet. Some say it went almost 700 feet. The all-time Babe Ruth historian came to a conclusion that hitting a ball over 700 feet is impossible. So he estimated the ball could have traveled around 650 feet. Either way you won’t see a ball hit that far anytime soon in this era.