I know that felt recoil is subjective, but I would appreciate it if someone could give me a comparison of 7.62x39 recoil to say 5.56, .308, .270 etc. I want to get an AK chambered in 7.62 but am worried about the recoil for my small statured wife so I am debating on getting a 5.56 or 5.45 version.