I've used a Bushnell and also a BSA 1.5-4.5x the latter is what's on the shotgun now.
My eyes went bad decades ago, and I found it was hard to focus on the bead and the bird at the same time. I keep the magnification down around 2.5x
I don't hunt with open sights anymore for the same reason. Get a set of fiber optic open sights. I can't focus on the bird and the sights, but I can put the red blur between the two green blurs well enough to hit a turkey's head every time. Remember your sweet spot is 10" in diameter. It requires a lot less precision than shooting a rifle.