I’ve purchased from Midway, Cabela’s, Sportsmans Club and Academy with no problems. Looks like Sportsman’s Club has some nitros. Fiocchi Golden Pheasant are very good and a little easier to find as well.
Just dont shoot Federal "Heavy Field Loads" They suck -- I've crippled more birds with them than anything else --
Now the only thing I pay attention too is the fastest load FPS wise in the shot size I want. I shoot 20 g - so if I recall 1200-1300 fps or so is a pretty good load. In 12 g its around 1400 fps or so. I've lost less birds that way and get better penetration with the shot win the birds are hit.
Federal Heavy field loads I dont know how many quail and phez I'd get that would have pellets fall out of the skin/feathers when I was cleaning the birds.
I shoot both the Fiochhi Golden Pheasant and Prairie Storm.. They are both good shells. I'm actually shooting Prairie Storm now and have only had 1 wounded pheasant out of the 6 that I've shot so far this year.