I killed a squirrel with a big acorn when I was a kid, and I cut his tail off. Looking back, I think he was dead. Anyway, he sure wasn't moving.Every fall I gather a bucket of acorns from the front yard. They are biodegradable, free and are great ammunition for keeeping squirrels out of the garden.
I hold it horizontal/sideways. I shoot over the forks. I shot thru the forks when I first started but was hitting the left (top) fork too often. Knowing just a little more now, it was caused by my pinching the ammo too far forward. Hitting that fork will happen OTF or TTF if you don't pinch the ammo right. I can't say I can see much difference either way, and I still hit that fork now and then LOLCHOLO, just curious, do you shoot your slingshot with the handle held verticle or horizontal? And do you attach the band TTF or OTF?