Interesting that the Ross Rifle was a failure (under trench warfare conditions) but the LMG conversion of the Ross Rifle, the Huot Automatic Rifle, probably would have been a big success had the war not ended before the final production version was ready for mass manufacture.
http://en.wikipedia.org/wiki/Huot_automatic_rifle . Its a pity that the Ross Rifles provided to Britain during WWII hadn't undergone that conversion.