Thread: SAAMI specs Hornady Headspace gauge and Lyman Caliper

Your rifle if fitted with the factory barrel, is chambered for the 6.5x55 SE, a C.I.P. chambering. Your cases are 6.5x55 SE, again made to C.I.P. specification. It is my understanding that the 6.5x55 Swedish (i.e. SAAMI) dimensions are different from the C.I.P. (i.e. standard) dimensions and that the Fuller Pty-supplied 6.5x55 rifles that came via Australia, ended up with mismatched breech bolts because Fullers swapped some of them around to work with cheaper SAAMI spec ammo.

I suggest that you either make your query on a British site or send an email to Mr Hardy in Palmerston North, for his barrel maker to answer.