If you slow the rate of acceleration of the wad, you also slow the rate of acceleration of the shot charge
Jonsey;
Would you care to explain the fact that wads have definitely been known to be left in a bore while the complete shot charge was "Expelled". The Shot did not stop when the wad stopped. Its known as "Momentum/Inertia". The heavier weight of the shot gives it greater inertia than the wad. Now understand I'm not saying that in fact roughing the choke area a bit does indeed slow the wad, that's the theory of it. The Theory though is just as sound as your theory the wad cannot be slowed with out the shot being slowed an exact & equal amount. That theory Don't Hold no Water either. Note that the Vast Majority of the movement of a gun in recoil occurs after the charge has left the muzzle & the gun is given no more impetus to recoil. What has happened is that in that short period of time the charge is still in the bbl the gun has been given the Impetus to set it in motion & given enough momentum to keeep it in motion for some longer period of time than it is actually being pushed. According to "Newton's Law" if you fired a total charge weight of 1Ľoz (shot, wads & powder) down a bbl in which it could travel 30" & the gun weighed 7lb the while the charge was traveling that 30" the gun would travel 0.335" in the opposite direction. Now I doubt seriousl;y you or anyone else would question the "Fact" that gun will travel a lot more than .335" in free recoil, yet after that amount it is no longer being "Pushed" as the charge is gone.
