Nope,
The chip of concrete that wounded James Tague most likely was sent flying by the jacket-less bullet that struck the curb near him as a result of Oswald's missed shot -- the shot he fired about 1.4 seconds before Zapruder resumed filming at Z-133, which bullet lost its copper jacket when it glanced the traffic light's cross arm, thereby explaining how the metallic smear left behind on the curb had no trace of copper in it.
-- MWT 
I disagree with you and I think most people on this.
There was no chip of concrete that was sent flying from the curb. There was only a lead smear on the corner of the curb. That is something many people have agree on.
Click on the picture below to see the curb with the lead smear:
http://mcadams.posc.mu.edu/images/smear.htmAnd the lead smear was not caused by a bullet, in all probability. This is where I disagree with most people.
If it was caused by a bullet, how was it, by sheer coincidence, that a bullet just happened to hit directly on the corner of the curb. The odds are roughly 25 to 1, that the bullet fragment would strike right on the corner, and not an inch or two beyond it or below it. Or at least miss by a quarter of an inch. Such a coincidence should not be accepted if there is some other way the lead smear could have gotten on the location without a coincidence. If there was some way a lead object could have been guided precisely there. And there is such a way.
Thousands of cars pass this curb each day. If one of them drifted out of its lane, the tire would bump against the curb. The rim of the curb could guide a lead balancing weight precisely to the corner of the curb.
Indeed, in the picture of the curb which is now stored at the National Archives:

One can even see curved lines marking the curb. One of these curved lines point right at the lead smear.
Another coincidence? Or was this curved line made by the rim of a car’s tire, and the rim guided the lead balancing weight right to the corner where some of the lead was rubbed off.
Question for anyone: How did the bullet fragment cause a curved mark on the curb that points right at the lead smear it made?
Or was this curve mark unrelated to the bullet and it just happens to point at the lead smear by coincidence. And the lead smear itself just happens to be on the corner of the curb, again, by coincidence.