I have always thought that serious BG cartridges start wih the .264" bores.
The 6mm's are, to me, big bore varmint rigs.

Last edited by RinB; 04/23/17. Reason: Spellin

“Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away”.
Antoine de Saint-Exupery. Posted by Brad.