I have a Savage 10FP in .308 that shoots great. I would like a gun just like it, only with more oomph. Would it make sense to cut a new chamber for something like .300 WSM, screw in another barrel in a caliber that will cycle in this action, or just sell it and get another rifle in a bigger caliber? And if I do, would a 7mm WSM, .300 WSM or other caliber be a good choice. Here's a pic of the rifle and what it can do "as is."
The target:
The target: