Rem. M30 Exp. conversion/magazine box

[E T Williams]

I'm converting a M30 Rem. to a 458 Lott and need to know if I need a new box and what modification work needs to be done(rails reciever etc.). Would like to know if Wyatt boxes are the way to go or necessary. A dummy pachmeyer round will feed w/no shaving but depending who I talk to I get conflicting info. What needs to be done to accomplish this conversion? Can anyone help?