Thanks Daryl,
I checked out Krieger
h <a href="ttp://www.kriegerbarrels.com/RapidCat/catalog/pagetemplate.cfm?template=/RapidCat/common/viewPage.cfm&PageId=3390&CompanyId=1246" target="_blank">ttp://www.kriegerbarrels.com/RapidCat/catalog/pagetemplate.cfm?template=/RapidCat/common/viewPage.cfm&PageId=3390&CompanyId=1246</a>
and they have a 318 bbl with a bore dia of 318 and a groove dia of 33.

Pac Nor here have a 33 barrel in 33-06...
h ttp://www.pac-nor.com/wildcat/
Ideas ,anyone?
TIA