I don't think the width of the action should change between any of the 10/110 models UNLESS your stock happens to be a walnut stock meant for the Light Weight Hunter. I have noticed the LWH stock is narrower than other 10/110's presumably due to the fact the LWH action is machined differently. (It's sides are fluted or has been milled narrower on the dies to save weight. Beautiful stocks and beautiful action, but not a good fit for other 10/110 actions.)