This doesn’t have to be that complicated
The Texas Method:
Go set up in your “shootin house” put up a target at your corn pile. Whether that be 35, 40 or gosh, even 50 yards.
Set up a target at the corn pile, zero it there.
Take target down, add some fresh corn, hunt the next morning.
Piles? I thought they had high speed low drag feeders with timers and light sensors and stuff?!?!??
