I teach slinging at primitive skills gatherings. The last time was at the Firefly Gathering outside of Asheville NC where we made and used slings.
I would use tennis balls in the past over rocks for obvious reasons for anyone who has watched a newbie sling. However, I never liked the weight.
The last two classes I gave I used these:
https://www.google.com/search?sxsrf=ALeKk00rMHunrBhrMQY7F-ZX5uFayqTYxg%3A1606849...I like the weight and found that I am more accurate with these because I am more used to the weight of rocks and homemade clay glandes. Also the rubber balls make the class more lighthearted than using something used in actual war
Does anyone have safe ammo that they use for teaching?
Also, I have been gone awhile, but it's good to be back.