As a few have posted so far, I to would stay away from them. First they have a fibre based wad. If you find hulls at a skeet range etc., you don't know if the hulls got wet or not. I've heard more than one time of the fibre wads and worse like Walter had stated getting stuck in the barrels. The only Federals to use would be the Federal Premiums, as I believe they are one piece.
Use the Remington Game loads, or Gun Clubs, cheap enough and have the same structure as the Remington Nitros, Premiums and STS. The only real difference is the premium shells have real brass heads and not plated steel and that applies to most manufacturers.
