History channel, Sunday 10/9c.
From what I've seen on the web, it seems to be "Top Chief" with guns, knives, throwing axes, long bows and more guns. Right down to the prize money and the line "And the title of Top Chief|Shot.
Plus targets that explode. Splody is good.
First show Sunday, June 6 2010
Here is an 11 minute long preview of the show.