RE: doves?
What kinda choke are you shooting?
I hadn't practiced up...and was shooting a full choke (modified would be the ideal choke), took in 40 shells, brought out 1, and had 4 doves to show for it.
That is pathetic shooting.
How far you lead them really depends on your choke, and the distance the dove is from you...I'd say to put the bead closer to them if anything else...