Please help regarding superpump250 and serious m?

I have recently purcased a superpump250(800 gms) and serious m(12lbs).why I have problem in digesting superpump250 i take only one scoop in 300 ml of water.and in nutri. facts of serious m it is written that in 2 scoops(334gm)=50gms of protein.i only want to take 25gms of protein from serious m that much should be in 1 scoop but the scoop inside it is so huge that i doubt that it is half of 334gms.I think the scoop is of 334gms.please help guys.