What would you think about setting one up in something like the .405 Winchester or the .375 Flanged? I've seen an interesting one on one of the guns for sale sites. It's currently barreled for .30-06 (using cast bullet loads only, according to the current owner), but there's plenty of barrel for a rebore to something rimmed and in the 40,000 psi range. (Plenty of weight, too, to absorb recoil.) Would this be too much cartridge for the old action? If so, I'm sure something like a .450 Rigby or one of the larger American black powder rounds would be a possibility as well.
