thompson/center has never stopped making 5mag bbls, also taurus and rossi came out with revolvers in them, and maybe heritage arms, about 1 year ago, but I don't think they sold well. everybody is waiting on a new rifle. CZ and Savage were supposed to give it a go, but we are still waiting. otherwise you can put in a bid on an old remmy 591, or 592. Both of which are killer. Centurion does offer a new loading for this, and is also supposed to have allready in the works, and even more hot rodded round; a 32 or 35 grainer, at 2500 fps from the muzzle!!!! The current centurion round, is supposed to shoot from the old remmy's very well; I am not sure if the hotrod loads are safe in the old remmy's or not, allthough the rifles do look super stout, or maybe because of the round's greater weight and speed, maybe the old remmies cannot stabilize the faster , heavier fodder, so Centurion has not put it out on the market yet, and are also waiting on CZ or savage to bring out their rifles.... hhmmmm I hate waiting. I wanna bid on an old remmy, but I would commit hari kari, if sometime after , the cz or savage rifle came out, made to spec for shooting the hot rod 5mag rounds, that would drive me through the roof.
Just think, from a rimfire, a 32 or 35 grain bullet in 5mm doing 2500 fps from the muzzle; That is about what a hornet does, but with better b.c. and wind bucking ability, that is so schwing!!!
There is allways dudes over on rimfirecentral, talking about the 5milly, and what they are hearing and such, and wondering it the new rifles are coming out. You can bet that CZ, savage, and marlin reps read rimfirecentral, and read here for that matter....
check this article
http://www.varminter.com/2008/5mmrrm.html
then salivate...