Mersa wrote on Apr 7
th, 2021 at 8:37pm:
I just wanted to add a little extra information in regards to JudoPs math.
There are a few exceptions to what he has said.
The first is density. 2 projectiles with the same size/surface area with different density will perform different. Heavier doesn’t always mean larger. I know JudoP understands this I’m just adding it for anyone who isn’t as well versed as JudoP. But that leads into the 2nd part and that’s lift, a lighter projectile usually won’t travel as far as a heavier projectile of the same shape and size but there’s a exception and that’s if lift is involved. My best easiest example is a frizbee it’s far from what we sling but the concept is the same , it uses lift to flatten out the trajectory. Think a ceramic plate and a plastic plate , both thrown at the same speed, if thrown correctly the plastic plate will gain some lift and travel further.
I hope I’m making sense.
But seeing as we’re talking shotgun slings were probably talking about “hunting” (a touchy subject on the forum)
So what you really want is density. You want heavier materials
Like you noticed the steel B.B. was better than small stones. Even better is lead , and even better is tungsten. After that we’re talking about throwing nuclear Materials or platinum gold etc. so it kinda capped at tungsten but for the price probably lead.
If we’re talking about just scaling the same material then JudoPs explains it perfectly. 1x100g is better than 5x20g.
But perhaps 1x100g stone isn’t better than 5x20g tungsten. This is where the math gets way harder and I can’t exactly explain what’s best.
Sorry for the rambling
Yeah, that makes sense. I know we all wish we could get some tungsten in bulk haha. I also agree that in most cases 1×100g rock will go further and hit harder than 5×20g rocks, but for the applications range and hit force aren't the only factors. I live where it is legal to hunt certain animals with slings, even clubs, my thought was how people seem to compare slings to fire arms. Everyone knows a 308 will shoot further and hit harder at range than a shotgun, but up close I would rather take the 308 to the chest than 12g bird shot. Ultimately I am just trying to get the most range and power possible out of the shotgun style sling. Those steel bbs hit hard at a surprisingly long range, compared to throwing the same load without the rock on top too. My thought was that maybe the larger heavier rock could cause a small pocket of air lowering the drag for the smaller projectiles behind it. Like a car drafting in a race. Just a thought though. I got a ton of tests to try out