Just googled high speed winch and this would be pretty easy to replicate. Who knew that they already had "wakeboard winches" ???? Here is an example of one for under $1000 and I would bet you could do something for $500. http://www.instructables.com/id/Wake-Winch-1/
some of the guys from RSA have an annual Big Bore shoot w/ a .375 H&H minimum caliber to cull warthogs on a particular property. A friendly competition plus controlling the population.
Great machine, just gave me another very portable idea... a sled pulled by an atv! just be sure to stay out of the way as it gets to you or it really will simulate a charge lol.
The motor that runs it seems to be a standard car/truck wiper motor, then a larger gear to get some speed and the size of the drum to get it up to the speed they needed. With a bit of skill and some work you could get it done pretty cheap. If memory serves me right retail was below 1000$ for the system, that was a year or so ago. Would have liked a foot stop/start button as range sessions alone is not uncommon for me! Could always use the stationary bicycle target puller, just may have to take lots of water for the wife
