the key to slingshots is to pre-assemble a pile of choice rocks. (ammo supply)

it goes something like this:

i.e. camping, and you have to use something like a bear bag to hang your food.

ideally you're camp would be located in a strategic position.

identify "avenues of most likely approach"
stock pile choice rocks (ammo) in multiple locations, to easily expedite "shoot and move"
think: observation posts, range cards, sectors of fire, and interlocking sectors of fire.

become familiar with the target areas.
assign priority targets, typically in a 1,2,3 fashion, ranging from closest to furthest... 1.2.3.
practice picking from your ammo pile and simply firing off those rocks in a quick succession, firing priority targets, 1,2,3.

if you practice this method, its easy to illicit some excitement, especially if you happen to have set up camp in a location that provides some cover
i.e. behind big rocks, fallen tree, etc...

you'd be really surprised how well it works, especially if you practice, meaning: to practice that repetitive loading and firing, without looking at the target.
priority targets are stationary, something like center mass of a path way, a large object at the apex of a turn, etc...
practice firing at the location by way of alignment (azimuth of fire) with the priority target.
you don't have to actually see what is coming, just fire in that direction.

so it goes something like this:

you go on a bike tour, maybe a dirt tour, you and a couple of buddies are hanging out, cook, etc...
go hang your food from a tree, so that if a bears come around, at least you have some distance from their source of curiosity... maybe
in the night you hear a big noise, you jump up, grab a rock, and fire priority target. probably immediately from your sleeping location (kind of like sleep with your riffle)
while your buddy locates the target with a big ol light

or better yet.

there are multiple slingshots in the group. even better!

think guard duty.

unless you are super fancy with steel shot, and an ammo holder, a slingshot isn't all that great for "on the fly" type of shooting. its best as ambush/stationary defense.

I know for a fact that I hit a bear center mass at about 30ft while backpacking in the Russian Wilderness, near Weed, Ca... Callahan, Ca. Near The Marbles.
they don't like being hit
and they don't like fast things flying thru the air, ricocheting, and shattering off of granite.

I fired a rock at a mountain lion above Big Sur, almost in Ft. Hunter Liggett, and it jumped away (down) from its perch as soon as I let go of the rock. I continued to fire a conical pattern of fire (if I recall correctly; I think this is referred to as a "beating zone of fire" <--- indirect fire

slingshots are great!
big fun