I'm with Art on this one. I'd look for bow tune also. 12.5% is not too high by any means. In fact it's almost ideal.

Of course any arrow is going to start dropping off pretty well after 25 yards, even with field points. That's what they do. And the slower your bow is the more they will drop. You can normally look for about 6" drop from 20 to 30 yards with a bow shooting about 250fps or a little more. THAT'S WHAT ARROWS DO!!!!!!!!!!!!!!!!!!!!!!!