Well, I've not modified it at all. It's a .30-06. The only neat feature is really the monte carlo stock with schnable forend. This one is rare because most were bleached white, and this one has a awesome polished oil finish. Only the oil finished stocks were made for the rifles in Sweden, all the imported models aslo have a plastic coating and bakelite tips on the forends. So mine is a little special in that way, that I has the Deluxe model stock from Sweden that was ussed on the 3100 Crown Models (presentation series). It's a 20.5" barrel.