As an all-around gun the 3901 is hard to beat. It is at the upper end of what I will tolerate in a pheasant gun weight-wise, but it's not terrible. For doves, waterfowl and summertime clays, it's just right. Mine has shot a lot of my slow 7/8 ounce reloads, plus 1 ounce Winchester steel 7s for doves, 1 ¼ ounce Winchester Supremes for ducks and some high velocity lead pheasant loads. The instructions recommend a break-in period with heavy loads if the gun has trouble cycling at first, but I just took mine out of the box and started shooting reloads through it, and it has yet to malfunction. It's easier to clean that a 391, although not as easy as an A400, but it will go a long time between cleanings if you want it do. It comes with one stock shim which allows you to tinker with fit a little bit, and others are available.