7s pattern better than 6s.
6s pattern better than 5s.
5s pattern better than 4s.
7s have less energy, and will lose lethal energy faster, thus have less killing range than 6s.
6s have less energy, and will lose lethal energy faster, thus have less killing range than 5s.
5s have less energy, and will lose lethal energy faster, thus have less killing range than 4s.
Super full will pattern better than full in any of the above.
Full will pattern better than modified in any of the above.
Modified will pattern better than improved cylinder in any of the above.
Improved will pattern better than open bore in any of the above.
Now I have not personally tested this last part so it's going to be a guess:
1 oz of 7s will pattern better than 7/8 oz of 7s.
1 oz of 6s will pattern better than 7/8 oz of 6s.
1 oz of 5s will pattern better than 7/8 oz of 5s.
1 oz of 4s will pattern better than 7/8 oz of 4s.
7/8 oz of 7s will pattern better than 3/4 oz of 7s.
7/8 oz of 6s will pattern better than 3/4 oz of 6s.
7/8 oz of 5s will pattern better than 3/4 oz of 5s.
7/8 oz of 4s will pattern better than 3/4 oz of 4s.
In summary, shoot 3" lead 5s and the fullest choke you own or can afford to buy. Spend the time you would have spent fiddling with shells on building blinds, meeting landowners, or scouting turkeys.