Originally Posted By: L. Brown
Thus, the shells in question likely were not of the modern, post-Super X variety with progressive burning powder. I'm guessing the difference with current ammo would be even less than that.


actually, the practical context I'm thinking of it in is the relative performance of the long barreled, late 18th century "Fowlers" versus the much shorter barreled early and mid 19th century "shotgun". It appears that over a fairly short time period barrels went from over 50" to 30" or so.