not really sure, i was thinking specna because the raptor is a lot of money.
it'll be a 1j build, cant imagine i'd be planning much beyond getting it up to lifting .48's with a decent barrel and compression, although aftermarket part availability is something i'd be concerned with.
Of the two mentioned Mosin is where my money would go. And you know for a fact, despite the work, there would be a whole lot of joy from refinishing that stock... and who doesn't love a bit of a project.
thing is i've ran one of those mosin's, and whilst it's a pretty slick gun with surprisingly decent ootb performance, some parts of the externals are lackluster and running it for a day will guarantee you have no skin left on your fingertips from that mag......
it's a tricky one, i don't really need, or possibly even want a bolty, i mean i have the dragonuv for .48 yeeting duties....