Target practice at the North Central Washington Gun Club is the likely cause of an 8-acre grass fire Friday evening, a fire official said. Firefighters from Douglas County Fire District 2 responded to 2740 Gun Club Road near Fancher Heights just before 6 p.m. Acting Captain Josh Barnes said firefighters quickly knocked down the blaze. They were at the scene for about two hours, he said. He said conditions are already ripe for brush fires, so residents and visitors are warned to be careful with fire.