Originally Posted By: 2-piper
I see a caliber marking on the rifle barrel of 7.7 mm / 57. This is a way to small a bore for the 8x57R/360 which is nominally a 9 -9.3 mm size, I forget its actual bullet size.


9 - 9.3mm on a 8X57R/360? Many are in the 0.318" realm. 7,7 would have been the bore and increase to 8,1 with the rifling.


Cheers,

Raimey
rse