String jumps off on release. HELP!!!

[sleek]

Its a wide loop string for a horse bow. Not every shot, but a few rimes on release the string jumps off after the arrow is shot. I have raised and lowered the brace height, shortened the loops, and still it happens.

[Pat B]

Pics please.

[sleek]

Here you go

[Pat B]

Cut your string nock a little deeper and groove the sides of the nock so the string rides in the groove

[sleek]

I will go deeper. The sides are grooved but I will go deeper with those too... thanks Pat.

[PatM]

 Definitely needs to have deeper nock grooves. Does it have bridges?

[sleek]

Yes it has bridges. I just switched to a thinner string to see if that helped. I shot it a few times and the string jumped again. This time because its a thinner string is didnt leave tje nock, it just jumped the bridge. I think limb twist or tip alignment may be the lroblem.

[Pat B]

It could be limb timing too. Is there any hand shock?

[sleek]

There is a small amount, but nothing that I would say isnt normal.

[PatM]

Pic of the bridge?

[sleek]

Here, they double as brush nocks as well.

[PatM]

Those work great with perfect alignment and no torque but they encourage the string loop to slip past if things are even slightly off. A bridge that goes across with a groove in center encourages things to hit the center and stay there.

[sleek]

Got any examples of something that would work?

[mikekeswick]

The nock doesn't nbeed to be any deeper, that isn't going to help.
The problem is either stability eg. limbs twisting or the angle that the string goes from the nock to the back of the limb/bridge.
Need to see it strung up, view from the tip looking along the tip/limb and a view of the tip from the side.

[Del the cat]

More bridge width to guide the sting into line if its vibrating about.
Del