A 307 Wichester barrel would be nice, except for the brass being scarce and expensive,and a strictly handloading proposition, or you could just have a 30/30 punched out to 30/30 Ackley Improved and then you could shoot regular 30/30 winchester ammo to make your own brass! Or even have a 30/30 or 7.62X39 barrel rechambered to .308MX
dg