Yeah..., I did it! Once...
Ended up giving the rifle away...
Still have another that I purchased thinking it was a std 8x57.
For some reason, I
love the 8x57 and the 8x60 even more... But the 8x63? Well, I had an 8x63A.I. for a short while... And that cured me of that desire. It was an evil-kicking machine. Every standard 8x63 (8mm-06) has treated me the same way...
Speaking of the M-78... I have one that some former owner converted to 9x57...
GH