I think Youngrotations and I beat this record a month or two ago. We set up a brick that launched the football projectile with 200 set to both z and x. We put that on a relay to repeat it so we could trace where it would hit the ground easily, turns out that at that velocitile setting, it disappears before it hits the ground, so we had to build a tower up to where it disappeared. Young hit the brick and I stood on the tower, for at least half a minute, until I caught it. I think it was 3 or 4k, but not sure.