Over the last year or so I have been slowly getting parts together to build my 1903A4 clone. Some were so coated with cosmoline it took a little work to get them clean. They finally all came together and the build was on. It ended up a pretty nice rifle. I have checked the chamber with the PTG 30-06 GO and NO-Go gauges and it was perfect. I still have to find a Gunsmith in the Southeast, Ma. area to drill and tap the receiver for the scope mount. It has a no Drill mount on it now.