I have used FIOCCHI Golden Pheasants GPX's the past 4 years in South Dakota and have been very pleased with them. I usually use 2 3/4 #5'S 1 3/8 OZ. Think they run about 1500 fps. Most birds hit with them fold and drop dead. I shoot a Benelli SB II and use either a Mod. or Imp cyl. depending on how the birds are acting.