Coleridge - I recall your posts on 6mmBR about the BR box. unfortunate that it isn't working out as hoped. I really wish someone would make a more reliable box for the little BR cartridges.
I have another 6BR using AICS mags that feeds great with 105s. However, for this build I wanted a more streamlined stock, hence the BDL box. My other BR went to Wyoming last year and claimed an antelope. I know that the BR/105 VLD is a potent enough round indeed.
Tanner - honestly I don't want to deal with the additional prep for the modified BRs. The range I shoot gets to about 550 yards. For that distance, the BR is perfect.
