This is a good question. Over the years I have spent a pile of money on X-Full turkey choke tubes from many different brands and in probly 2 dozen different turkey shotguns but I never did warm up to the look of an extended choke on a shotgun, (I love a short barrel on my turkey guns) so I now I only use My flush factory Full tubes in all My turkey guns and found very little difference in any of my shotguns effective killing range, With the Winchester Extended Range 3.5" #5 My guns still throw a mighty dense pattern @60yds and I usually like them around 35-40yds before I shoot anyway (unless I let them walk like ive been known to do these past few years 😂).....Good hunting....Hb