tws: some of those Rem. 5mm rifles were "iffy"; a guy I work with actually owned a 5mm back in its day, and he just rolls his eyes and shakes his head when I ask about it. Many thought the 5mm was gonna make a comeback and were clamoring for a re-intro, but I believe the economy put the brakes on it as much as anything. There were rumors C-Z was bringing out a 5mm, and I'm curious why NEF couldn't (theoretically) simply and cheaply chamber their break-barrels in that cal. and get the drop on everyone else; now that Remington owns them it would be even more appropriate, but the conglomerate that bought them is probably clueless and out for the quick buck then sell what's left after they've picked it clean, but that's another story. At any rate - and not to endorse another forum - check the one over at
www.rimfirecentral.com for numerous 5mm discussions.