Are Biconicals supposed to spin vertically?

I've noticed that several of my clay biconicals tend to spin vertically in flight from a side-arm throw.

Is this supposed to happen, I always imagined that they were supposed to spin more like rifling instead of end over end like a knife throw.

I've also noticed that they tend to make a noise. Not like flatter, angular rocks do, but a noticeable sound regardless.

They're supposed to spin like rifle bullets in flight.Ideally. But it can be hard to get that. Biconical design, sling design, and style of throw has to be right,to get it right.
Biconicals of max 2.5 times length to width ratio,symmetrical glans,wide grip on sling (loop on ring finger) ,and proper technique will help achieve a proper rifle spin.

Basically jlasud is right, only with the finger I have to contradict. I use my index finger and I throw 95% + with Rifle-spin.
Jacki, with your new Huaraca, that should not be a problem.

TheJackinati wrote on Jan 8^th, 2018 at 7:27am:


Sometimes it's the sling, sometimes its the slinger and sometimes it's the ammo. Good info in the replies. Troubleshoot by changing one thing at a time. The most difficult thing to fix is your throwing style so I would start with the other two first and see if that fixes it.

I was down at the beach, throwing rocks into the sea, trying to get my rifle-spin practice down.

I managed to get a few successful spins with my biconical clay slingstones.

Success!!

Next up on the list is to aim for getting 200 meter throws!