swedish m96 help
i bought a m96 mauser that has the single screw disk. there is a blank space on the wedge denoting elevation and the BBl condition is marked as a 1(1,2,3). the outer bore (6.51 2,3,4,5,6,7,8,9,) is NOT marked thus i belive it is a true 6.51 the lower portion (6.46 7,8,9,0,) is marked over the zero thus , i assume denoting a 6.50. that seems a very shallow land groove diameter for the rifle to be a #1 rated BBL. am i reading this right or is the lower marking 0 denoting zero errosion?