12 gauge 16 gauge question.

[J. A. EARLY]

Originally Posted by Jerry Harlow

In theory, and probably in reality, the shorter shot string of the 12 on birds/clays where one has to pull a lead results in more pellets on the target. The longer shot string of a smaller bore with the same amount of shot means the target has moved on before the tail end of the string reaches the target.

https://www.youtube.com/watch?v=edLXEqnicqk

At the end of the video this guy states a lead load shot string may be as long as 15 to 20 feet. With a string that long, the shorter the shot column (larger gauge) the more pellets arrive at or close to the same time.