3/4" steel plate, wow that's kinda surprising. That photo adds some more to my appreciation for the old '03 Springfield and it's cartridge. The 7.62 NATO will do almost anything the aught-6 would do with light to medium weight bullets, but it doesn't perform as well with really heavy bullets like the 220 grain soft points that used to be the preferred .30 caliber bullet for big bear, elk, and moose.
I like the newer NATO round for punching paper and I know it's a more practical combat round, but for an all around hunting rifle I would still take the old aught-6.
Steyr Mannlicher HS50 50 BMG