Originally Posted by Trickymissfit
I need to make a correction in my post. The BG round is similar to the 6BR, but about .50" longer in the main part of the case body. The neck and shoulders are very similar to the older 6mm HLS. There are two versions of it. One has .0125" of taper per foot, and the other has .0175" of taper per foot. Case headspaces off a .300 Savage head space gauge with max overall length being about 2.020". I found the reamer drawings last night. Cases used were .243 lapua, and it will push a 107 grain Sierra to 2950 fps
My 6mmXC does the same (2950fps. w/ 107g SMK or 108g. Berger Target),,,,,, and I can buy Norma brass, don't have to make it!