Ray,

If I were to do it over again I'd probably use something like the .450/416 you described elsewhere just for the bullet availabillity.

I believe that the .450/400 reamer would clean out the .405 chamber, but I've got enough .405 Win. brass to last a while, the light loads in .405 are fun and the only problem is finding adequate .411" bullets. Wonder how the Hornady 300gr .411" bullets for the .405 Win. would do in the 450/400 as a "varmint load"?

When I decide to get a real DGR it'll probably be a .416 Rem in a bolt gun (see I been paying attention