Here is my submission for the egg-hit challenge. Forewarning, I never achieved a direct hit on an egg. The linked video is my best one (second throw in the video).
I think I may have gotten slight contact with the egg on this throw. The reason for that is because in all my attempts to break one, the egg fell to the ground many times. Sometimes I made contact with the plate or a branch, and sometimes the wind blew it down. But this is the only time it actually broke. That being said, the fall could definitely be the only factor.
The sling is paracord with a leather pouch. The length is 29 inches (73.5 cm). The distance of the throw is about 45 feet (13.7 m). Ammunition is 2.5 inch (6.3 cm) ice balls. Enjoy!
https://youtu.be/zO0Ubc7Mo5gOne last thing, I have a whole bunch of recordings from trying to hit an egg. As soon as I go through them and do some editing, I'll be posting a couple more videos.