Well Haz, based on the fact that 1 moa at 100 yards is only 1/60 of 1 degree and equals 1.047 inches, can you estimate the degree of movement sweeping the barrel for one second?
It's not difficult math, just use the number you know, I say, as you do, that the lateral degree of movement would be considerable. Say you move the muzzle only 10 degrees, that equates to 600 MOA, yes? In simple engineering terminology, that equals a "Shit Load"!