have been a slinger for thirty years now. My first,
and only source of information was a picture of David
from the bible. Since that time I have been steadily
improving my slings and made dozens of styles trying
to improve my accuracy. Only in the last three years
have I been experimenting with making my own ammo. After
experimenting with many different systems of production
I have arrived at a way to make very consistent sixty
gram cement balls in less than fifty seconds. This time
includes painting and cleanup. Now my slings are made
to fit my ammo and I have seen dramatic improvement
you need to make some tools: The channel is a piece
of tin that was bent around a piece of wood to form
a channel, and glued to another piece of wood for stability;
one end is blocked with a small piece of wood. Then
I made a small cookie cutter-like tool out of stronger,
thicker steel. The cutter fits inside the channel snugly
but is a 1/8 inch taller to let the excess cement squeeze
out the top. Then you need a chunk of foam egg crate
to rest them on, a bowl, rubber gloves and a spray bottle.
Next mix a small batch of cement: I mix enough for between
75-80 bullets (any more than that and I start to get
tired). Make sure the cement you use has no aggregate.
I like the mortar type, small grains are best. It’s
important to mix the cement to the correct consistency.
This is something you have to feel, and it may take
you a few batches to get what I mean. You may need to
give it an occasional spray with water to keep it moist
enough, or add a little dust to it, to dry it up.
jam cement in the channel starting at the blocked end
and compacting toward it, taking care not to leave air
pockets. Now use the cutter to cut a small square. Each
cube must be made of compacted cement, or it will be
the wrong weight or crumble as you try to roll it. Don’t
lift out the cutter, but rather slide it out the free
end of the channel. Now you roll them between your hands,
a tiny spray of water on your palm will help to melt
the corners. You need to be very gentle -- a full 15
second roll with almost no pressure will round it just
enough. The idea is not to have a perfect sphere; a
few bumps and flat spots will give you similar aerodynamic
properties to a dimpled golf ball.
12 hours of resting on the foam they go into a sealed
bucket to sweat for at least a week or more. Painting
is the last step: I put on gloves again and hand roll
them in latex paint and lay them on a wire mesh to dry;
as they dry I like to give the top side a blast of fluorescent
orange spray paint for visibility. When you shoot these
you get a cool meteor like streak through the sky. Some
other cool patterns are little planets with green and
blue, or eyeballs, just to give a thrill to some kid
that finds it some day.
technique is so fast I rarely even look to reuse my
ammo; if I stumble upon one I will pick it up, but sling
time is precious, and you don’t want to waste
it looking for ammo. I would rather spend more time
in the rotten months of Canadian winter cutting and
rolling than the summer on scavenger hunts.