Alright SunSlinger and Coenie (now that you're officially "in" it isn't cheating to add SA to the map anymore...) Nice to see some technical discussion again, though that monkey kind of freaks me out...
Projectile weight has everything to do efficent slinging. I started down a systematic path with the ballistic pendulum experiments and the sling ballistics simulator, but didn't finish up. My idea was to try a sequence of masses, and then work back to launch speed, and subsequently maximum range for a given length/style of sling. A slightly heavier glans might carry further then a lighter one thrown faster, for instance. This gets complicated quickly! My results would only have been directly applicably to my own slinging, but the trends would have been of wider interest.
Accuracy is a different beast all together. My knit sling (my favourite) "hangs" a little (hoping this will wear off as the tar gets less sticky). Without any regard to length, this is obviously an undesirable characteristic. I think part of the "accuracy" of shorter slings might be due to this effect. I guess I'll just have to make some more slings to test out the theory
I'll try to move the slingsim back up near the top of "the list". It looks like a few of you might be able to make good use of it now. I'm still looking for empirical validation btw (hint hint), so if anyone with a decent test range wants to help fill in the data it would be much appreciated!
I'd also like to rub in the fact that anyone who spends this much time thinking about slinging (and knows about floating arm trebuchets!) doesn't have a snoballs hope in... of not breaking down and casting his own lead glandes... I think maybe we need a pool.
Matthias