OOPS! How right you am!!
Having transferred ammo from original box into my MTM ... which was wrongly marked and I made stupid assumption. On inspecting another lot of rounds in an MTM marked as MagTech ... indeed ..... C.B.C. is correct.
So ...... in results above please read WINCHESTER!! Sorry about the confusion, and - looks like a I should pull a round to establish bullet weight too.. Mind you they did feel reasonably ''brisk''.
<mutter> - really must check more thoroughly </mutter>