This file contains different barrels in both high quality and lowpoly. There are two predesigned diffuse mappings in high resolution (2256x1360 300dpi) which are easy to color adjust as well as bump and specular mapping. In .MAX format the modifier stack is not collapsed (in high detail) so its easy to go back and change the polycount up and down.
Lowpoly version has 3074 polygons and 2123 vertices
Detailed standard version has 11777 polygons and 10338 vertices
Preview images rendered with Mental Ray in 3dsmax 9 with Ambient Occlusion layer.