I have a rather new 12 ga Browning 725 Sporting gun. It's easy on the shoulder compared to most of the O/U guns I've shot. A lot of the 20 ga O/U guns are very light and kick as much as the 12 ga. The 725 Sporting is heavier than a field gun, this helps manage recoil. If you can try various guns it'll help you decide. Also, there are lite target loads available, My favorite is the AA 1145 fps, 1-1/8 oz. Also available in 1 oz if you can find them. Having the gun fitted is also a big plus.