Alot of (all?) reloading manuals give the edge to the 260, although that is likely due to the higher pressure spec. If you were willing to use the 'equally strong rifle and brass' argument to justify higher than spec pressures for the Swede, the greater capacity might well give it the edge. Ultimately, for reloading prospects, availability / cost of brass is a key. That would generally favour the 260, with the caveat mentioned in a previous post.
