Barrel is H M Pope #554, dated 6/6/20. Twist code is 9.6/0 Twist is right handed, as I think all "smokeless" cartridge barrels by Pope are cut.
I don't have the action serial number in front of me, but several years ago I inquired of the keeper of the Springfield records (Mark provided the contact info, I think) and they did not have anything on it. However, we were able to determine the action was made in late 1919, so Major Sloan must have had some pull with the arsenal to get a brand new action for his rifle.
