7.62 No4 MKI conversion question

[Surpmil]

As I've heard it, the bolts and bodies were magnafluxed to check for cracks (same process used for cylinder heads etc) then hardness tested. If they passed those two, then the conversion was done, proof fired and if that was succesful, then the maple leaf mark and the conversion number went on. If one looks underneath the bodies near the front guard screw boss, the 'punch' marks left by the Brinell hardness tester can be seen.

Congrats to the new owner - you do have a piece of history there. I'd agree about the lack of documentation on Canadian target shooting etc. The knowledge is disappearing with the people, and quickly.

It would be nice to hear about the other rifles, and I'd suggest contacting the original owner and getting his comments on tape or paper ASAP.