Two new web pages have been added to the NSBA website, dedicated to
shooting at moving targets. Viewers are strongly cautioned that this
should be done only once one has achieved a level of expertise at
shooting stationary targets, because of issues involving a high miss
and rebounding rate. (danger to surroundings, and observers)

http://www.enter.net/~craftsman/nsba/nsba.htm follow the link for tips
for competitive blowgun target shooting, to the advanced shooting, to
the moving targets page. Again, unless you are an expert (Silver level
or above) shooting at stationary targets, don't try this at home! Be
sure to properly secure the area, and take the precautions listed.