[3" or 3 1/2" what's the real difference?]

Thanks for all the info. I think I will go with the 3 1/2 gun. Knowledge from the field has always proven more accurate and helpful than over the counter. Thanks again.

[3" or 3 1/2" what's the real difference?]

I am going to purcahse a new shotgun to hunt ducks in flooded timber and in open fields. Is there enough difference between the 3" and 3 1/2" mag. to justify the increase cost of gun and ammo for the latter? Has anyone used the two guns in the same blind to compare? Any opinions from experience would be helpful.