A good semi auto 20 guage is what you need fitted for length of pull that makes your wife comfortable. My buddy has a 391 12 guage with a 26 or 28 inch barrel and it is lighter than my 20 guage CZ 720 so it kicks more. Weight helps absorb recoil. Make a shotgun too light and you ruin the handling characteristics of the gun. I believe CZ has a 24 inch barrel version right now and they are a decent economical shotgun. I bought the 26 inch barrel and shortened the stock before adding a recoil pad. So now it fits and it handles very well and kicks very little. Remington 1100s are better guns but also a bit heavier with all steel receivers. You also have to consider weight for a woman. I have a beautiful Browning BPS I bought to take the ex wife skeet shooting. She was kinda a wus anyways, but the gun just was too heavy for her to hold and swing. It also kicked more than she could tolerate. What's wrong with the browning ladies/ youth pump? First of all the barrel is 22 inches so it doesn't have enough weight forward for a good swing. It handles more like a riot gun than a bird/clays gun. Also, the all steel gun is built like a tank but too heavy for a person with a slight build and limited upper body strength. So based on my experience, a light 20 guage semi auto with a 24 or 26 inch barrel would be my recommendation as the best choice for a woman who hates recoil from a 12 guage with 1 oz loads. The nice things about 20 guage autos, there are a bunch of them and most are great! If you are looking to save money, a mossberg 500 pump with real wood stock that can be shortened and 26 inch barrel is also a good choice. It just will have a bit more kick than an auto particularly if she plans on hunting with heavy field loads.