i have an odd story, my CaM15 couldnt shoot through the bottom of a soda can but it can easly go through the sides. Last night i just took apart my hop-up and relubed everything. Now according to the poor mans chrono im getting 480fps, yes ladys and gents i can shoot through the bottom and shoot through the top. Any reasons why im getting this now with a simple hop-up/barrel clean?