I use progressive bifocals for everyday and hunting and don't have any problems with them EXCEPT for handgun shooting.
To get a clear focus on the handgun sights I need to tilt my head back a little too much for comfort when shooting long strings (gives me a crick in my neck after a while and if I don't watch it, I start to get lazy and have a hazy sight picture). My optometrist, who is also a shooter, tells me the cure for this is to get "upside down" bifocals with the magnification on the top part of the lense. I've tried his and they work OK (of course allowing for the different prescription). But my insurance won't pay for them....
My insurance (Davis Vision) DOES pay for my regular bifocals to be made to high ANSI safety specs, which works OK for me for shooting glasses.
