Dead Mans Gun was airing around the time Lexx I believe. Lexx was crazy and insane stuff but fun, this show is likewise. I searching the internet for reasons why it was cancelled or interviews with it's producer, none of which I could find. Unfortunately for us there is always going to be a mystery of how good it's ratings were, why was it cancelled, and who decided that season 3 would never happen. I am not angry but disappointing because if they'd done 2 more seasons this would've just been outstanding IMO.
If anyone ever finds out the answers to these questions, etc. post here. Thanks!