Gotta be careful where you attach that ONE string. Might get some sort of pinwheel rotation about a single center and a barrel dent, or heaven forbid, a stock ding. And gun sure as hell wouldn't accelerate at the same rate (relative "steepness" of plot for you math sophisticates--you know who you are) or to a maximum velocity equal to that of the ejecta. Mass x Distance / Time still balances both sides of Mr. Equal Sign.

jack