Simple answer is yes, if your gunsmith is good enough.
The bolt will need to be opened up and the extractor opened up as well. The feed rails will need to be modified to feed the magnum cartridge reliably.
Are yo going to rebarrel or try to salvage the barrel? Are you going to keep the original stock? I' pretty sure aftermarket stocks are extremely difficult to fine. Is the receiver drilled and tapped for a scope?
This project could be a very expensive venture and I am not sure that when it is finished it will be worth the cost.
