I don't know bout a bullet, but the longest golf drive in human history is going to be about 480 million miles (three years traveling).
A Russian cosmonaut on a spacewalk hit a special golf ball as a promotional stunt in November of 2006.
Imagine you are 220 miles above the earth, orbiting in a space station at 17,500 miles an hour and have the eyes of the world upon you as you prepare to take a golf shot that could travel anything up to 460 million miles. No pressure, then.
...with his goldplated six-iron in his hand, he spent more than a quarter of an hour positioning himself for the shot - not easy when half the time he was upside down.
Finally he struck the ball ... and, with almost poetic inevitability, mishit it. It was what golfers call a shank - that awful moment when you hit the ball with the heel of the club and it goes off in some unpredictable direction.
This one went off to the right, although with no fairway to aim for Tyurin had no reason to be upset.
The cosmonaut - who had not picked up a golf club until three months ago - said: "I can see it as a little dot moving away from us."
Yes, but how far? The Russians, who are being paid an undisclosed sum by golf company Element 21, say the ball - weighing about 1/15th of a normal golf ball - could travel for more than three years, or 460 million miles.
http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=418145&in_page_id=1770