I started with my stock spring mp5 I got off ebay... it works pretty well, but after about 15 feet the bb start to curve DRAMATICALLY upwards. I mean, i can find myself aiming 3 feet below the target from 30 feet away to hit it. Also, occasionally the gun doesnt fire but i hear a spinning sound, as if the bb was spun by the (fixed) hopup but never left the barrel. Any ideas about why this is happening?
i figured it was just because i got a $50 spring gun... but maybe its something else
