The conversion is possible. Bought on of those reimported heavy barrel Model 10's from Bud's a while back. Here is the thing. Unless you are really good in the shop you may be in for trouble. Unscrewing the old barrel and installing the new one can be tricky without the proper jig. A sprung frame would be a disaster. The heavy barrel frame will not line up with the 2" barrel contours but I reblued the exposed frame so it is not so obvious. Buying an ejector rod and center pin from Numrich is easier than trimming and fitting the old one. The surfaces of the new barrel and the old frame are very easy to damage while the procedure is being done. Sell your old 10 and buy a 2". Just my 2 cents.....