So, I was thinking about this today as I am, once again, looking for a bolt action in 7.62x39. I had a used Ruger American Ranch that seemed to work well, but ended up giving it to my Son-in-law and bought a new one. The new one would not cycle rounds, they were all binding up. I didn't feel like messing with it so I sold it. I have been looking at trying a Howa 1500 which got me thinking about different brands and their proprietary mags.
If they make bolt action rifles to take AR mags of various calibers why don't they make one to take AK mags. All the offerings that have detachable mags in 7.62x39 use proprietary mags. Heck even if Ruger, CZ-USA, or Howa used AR mags for x39 it would make it more 'industry standardized'. Do they really feel they would lose that much in sales on accessories that way or did their engineers simple not think of it?
On Ruger's part, if they would have made the Ranch in x39 to take AR mags for the x39 round as well they would have reduced the stock design differences and cost as it would have made the the mag-well and release setup relief cut areas the same.
Anyway, just my thoughts as I sip on my morning cup of coffee.