Very innovative solution!  I wish I'd thought of it.

I can see that it would be useful for improved accuracy, especially short range accuracy.  I can also see that it won't spin the projectile upon release. That's not a big deal with spherical ammo. If you wanted to use aero ammo it might not work as well since it isn't spinning to help with stability during flight.

Yurek, I have tried your design and it seems very good to me. The release of the stone is very clean, it takes place without almost friction with the pouch and as it don´t touch the cords as in the conventional design, the stone seems to take greater speed and without any posible little deviations. The liberation also takes place a little before and always in the same way, with a great regularity, which causes the shots to be more consistent.
I´ve got the impression that it is a very good design for accuracy, but also it can be better for range when certain projectiles, like espherical ones, are used, due to the almost complete proficiency of the launching momentum.
As disadvantages it has to be mentioned that it´s a little more troublesome to load than the simple sling and that the projectile acquires less spin, reason why it would not be adequate to use glandes or football shaped stones, with which we looked for this effect of spin. It looks better than the conventional sling to use with spherical medium or big weight stones, and also to use for accuracy. But it will be necessary to make exhaustive tests before being sure of these impressions.

Congratulations for your design!!!
I have simplified it a little making easier for me to construct and been more "primitive" , but not less effective (I have used a little wood stick instead of the nail, and instead of bending the nail I have inclined a little the stick so that the pouch does not release in the wind up. And finally I have adopted the two conventional cords instead of one making a loop, because I find it more comfortable.

Thanks guys for appreciating that design.

Hondero,

I'm realy glad that you have tested that one and that it works for you. My feelings are very similar to yours. Indeed, the spin of the projectile seems to be less in comparison to the traditional release. As you have said it should be profitable for round projectiles due to the less Mangus' effect.

In that design the cords shouldn't be too distant each other in the palm due to possibility of uncontrolled releases. This is a little problem for me, because I usualy separate them by the fingers for a better control of the pouch angle during release. So when I use the new design with elongated stones, their position is too often random. In this case a less spin is also profitable Maybe my cords are too thin.

I hope that charging shouldn't be difficult after some practice,probably it only require new habits.

I used the nail only due to simplicity, I'm sure it is possible to make a more advanced trigger, which make possible easy and quick adjustmet. The wooden trigger is a good idea also.

Actually I havent too much time for testig and improvement that design. If I have time I try to work more on my technique rather.

Jurek

Si Senior Greenfield,

I have about ripped my finger off with large, long stones. I figured out that my problem was usually getting too quick on my release. The pouch was too far back when the release cord was loosed so the stone slides along the cord and gets tangled up. It only happens with the 36"+ length slings.

Another invention more for the nook. This lasso-sling is without any doubt the simplest sling one can make . The pouch is made with only a knot, exactly a sliding knot.



The release cord is a little shorter than the retention one, so that when we hold the sling all the weight gravitate in this cord and the sliding knot is tightened around the stone, preventing that it slips although we turns it around actively. When we let go the release cord, the weight is now  on the retention cord and the knot is loosened, releasing the stone. It is that simple and nevertheless the performances are good. The technique of launching and the feeling is the same that when sending a single bola.

The cord diameter must be adapted to the one of the stone, so that the stone does not slip. In general the thin and resistant cords work better. Well guys, those who feel lazy to make a woven sling, no longer have excuses to not start slinging. The sling is made in less of a minute, and what is better: IT WORKS.

(The rights are also reserved   )

Quote:


Mgreenfield,

That spin is good only for elongated projectiles, when they start "point-to-first". But that one shouldn't be too quick however. IMHO in other cases it is unprofitable due to a wastage of energy and the buzzy, bent and usually short fly of stones. Most often, the reason of it is just in the hitch the release cord by a stone. For me that shots are usualy unsuccessful regarding to both ranges and an accuracy. I think the poch angle relative to the release direction is the main reason. The most profitable pouch orientation is the same like during the "point-to-first" release. Just then the stone has the greatest chace to leave the pouch on the left side of the release cord without the hitch.

For me, a stone hitch the release cord sometimes too. But fortunately it doesn't happen too often. The marks (wipe) on the pouch confirm that stones leave the poch mainly on the left side of the release cord. You can see it on the below picture.

That long sling has hurled hundreds or rather thousands stones until now.



The bigger problem for me is the wear of the release cord just before the knot. It looks like my fingers make a more harm for the cord than stones



As I said once before, to avoid the hitch:
- I separate the cords by the fingers (it make a more possible to control the pouch position).
- During the widups, I try to use the wrist movement which prevents the cord twisting.
- Usually reduce an amount of the windups to 1-2 times, for consistency.

I also have noticed that a good springy shot reduces the cord hitch probablity, or... maybe it is  inversely?

Jurek

Mgreenfield,

Quote:


It is the best way, if it works the best for you. The vertical throw gives a much bigger freedom for the wrist, so I think you also could try to change its angle during release. Maybe you will find the best angle? Just theorizing

Jurek

The problem is that if it can release itself, controlling it's direction would be very difficult.  You really need a human to release it at the right time with a final push of acceleration.  (It's that snap of that wrist that gives the sling it's power).

Chris