AK? Metric or Imperial

[ARlife4me]

I'm guess most all if not all AK's foreign made use the metric bore of .311/.312? At 1 time there were some in actual .308 (imperial), but US AK's that were made for AR's? Anyone with experience of .308 or knowledge of info a little help. Thanks! Hornady and Starline makes brass for AK's, but haven't found anyone else that does? Another thing, are all mags regardless of country of origin use the same style?

 

[7.62 Gunner]

Pretty sure they're all .311-.312
I have a PSA Ak 103 and load 220 .308 subs with really good results.
I buy Norma ammo and reload it, use Bulgarian Mags