Originally Posted By: Stan
Constriction is the only way to "choke down" the diameter of the shot column, and to work, it has to happen at, or very near the muzzle. This reduction of diameter at the muzzle is what provides the choke effect...... the reduction, regardless of bore diameter.

SRH


yes, I know that and can repeat it, but as a dumb professor, I want to understand the mechanics of WHY constriction, not final diameter matters. I feel this missing mechanism is probably somewhat embedded with the arguments above that I have, admittedly, only skimmed through. There is a difference between knowing and understanding. I'm looking for the latter.

_________
BrentD, (Professor - just for Stan)
=>/

[Linked Image from i.imgur.com]