Forget design improvements, how about aiming improvements?

Tipton, IN:

Police officials are considering design changes to a firing range after a stray bullet struck a home about a mile away.

And who was doing the shooting at this time?

Deputies quickly alerted several members of the Noblesville Police Department, who were conducting firearms training at the range.

[...]

Police are speculating a shooter lying in a prone position, aiming upward at a target, must have sent a bullet up and over the mound of tree-covered earth at the back of the range about 30 miles north of Indianapolis, Russell said.

"It must have went off at least at a 45-degree angle to get that far, kind of like an arch," he said.

[...]

Russell and Tipton County Sheriff Craig Henderson said that until improvements are made on the county-owned property, it is unlikely officers will do any more shooting there.

Meanwhile, I suppose they are looking for a new range with more than a mile of vacant land behind it.

(Poorly controlled double-tapping is to blame, is what I think).