Con,
Jim Kent, Buffalo Gunsmithing in Toowoomba QLD is doing the BLR's. He's done a few now, starts with 300 Win Mag's, simple rebarrel. The ones he has done are the take-down ones, and he has someone making the adapters that Browning won't sell you to have a set of interchangable barrels if you wish in various calibres, with the complete take down feature, unscrew one barrel, screw the other one in and go shoot.

David.