I would like to swap out the regular 24" barrel on a Weatherby Vanguard S2 in .308 Win. for a 20" heavy bull barrel 1:12 twist. Can someone recommend a good barrel manufacturer, preferably Canadian, that could meet my order. I was going to get the Vanguard Sub-Moa with the heavy barrel but there are none available in Canada as far as I know. If anyone knows of any Canadian retailers still carrying the Sub-Moa, let me know. Thank you for the information.