> I have no idea what is OP aiming at, but you can imagine, that > if that is a semi automatic gun then that is not a sport one. We > used pretty much a metal sheet with different shapes Ah. I was thinking a projected dot or something, keeping the whole thing electronic -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist