300 wsm federal ammo question

[SofaKing]

I had bought a 300 short mag this year from a guy. He gave me a plastic Box full of federal ammunition. Some have blue primer sealant others have red primer sealant. My question is without pulling the bullets to check the difference. Anyone think that there's a difference in grains or if it's premium ammo based on color of primer sealant? The guy wants sure.

 

[Bang4theBuck]

Not sure how much help.this is, but I had mailed boxes of Federal fusion that had blue primer sealant, a d they were the 165 grain bullets. I have bought other federal premium ammo that had the red color primer sealer. You could weigh the loaded cartridges to get an idea of the difference between them..