Stan what distance are you checking convergence? Most check POI at 16 yards because the math is easier and patterns still small and well defined. Since a double that is set up to converge at a certain distance it will also cross over at a longer distance the point where the barrels converge is important to me. If you have a gun which has 75% convergence at 20 yards does it overlap by 40? Maybe the 50:50 at 20 yards is 75:75 and 30 and 100:100 at 40 yards. What I don't want is for convergence to be too close for any gun I'm going to be using for long crossing shots. Don't want to be shooting behind a bird because my right barrel is set up to place my pattern two feet to the left at 40 yards. I can miss enough birds with out help of my gun.
