With the way that thing kicks, I'd like to see some fella about Clyde Barrow's size (they say he didn't weigh 140) shoot one with the barrel and buttstock cut back. I'd don't think he could hit a thing but that 30'06 would sure keep fella's heads down just in case.
I've fired the BAR, and the recoil is not what you'd expect. It's more of a rapid series of "bumps" instead of hard slams. Rate of fire is also very low, even on the "fast" setting, so it's very controllable as well.
Of course, I'm not five four, either, and I haven't seen 140 pounds since the late 60s.