The strength of the action matters as much if not more than the strength of the barrels . The pressure of .410 shell is in the 12000 psi range , the 30/30 runs closer to 40000 . Also the size and weight of finished rifle is a concern . I havent built anything ....yet , but I dont think I would build a 30/30 on a .410 shotgun . A .22rf might be cool . There are many here much smarter and more experienced than I . What say you ?