After looking into it, the measurements of the .458 Winchester magnum look very appealing. It looks like mag well length and bolt face would both work. Am I reading this right?
I know this is a hypothetical and the OP does not even have the gun. ..... As long as he made an initial selection. I will 2nd this choice. It is as good as any other big bore (his words) It is not some rare oddball or goofy choice I need to wiki just to figure out. Not some new and improved fad round. It is a very versatile and fun caliber to reload for.
As for salvaging the original barrel, a new barrel, no sights, will actually cost less and be proper sized,for a BIG BORE, again the OP's words. Cost less, work better. ....
