I have never shot the Winchester, but I still have a 3" Rem. 870 "Turkey Special" and have killed a lot of turkeys with it. I started shooting a 3 1/2" Rem. 870 last year and the only disadvantage I have found is the extra weight, but I think the gun more than makes up for it in its consistency of shooting great patterns at 40yds. Yes it can kill out past that, but I think consistently shooting past 40yds will get you in trouble. Not to mention what normally apears to be 40yds where this type shot is possible normally turns out to be farther for me. I am shooting a Comp-n-Choke with 31/2" Winchester #6's. I am shooting there newer shells that are a little hotter and have a little less shot. I don't worry about the extra kick while hunting, but it can be a factor when patterning the gun. Whichever gun you choose will kill a turkey, but you have to pattern the gun and only shoot wihtin that particular gun's limits.

With all that said, I don't think you can go wrong with the 3 1/2" 870.