One of the fastest growing high school sports in America involves guns and ammo

Rain cascaded down Sophie Johnson's face as she aimed the shotgun. She held her breath, trying not to fog up her glasses, then curled an icy finger around the trigger and pulled.

Across the field, the bird exploded in a hail of neon green shards.

"It was amazing that I was able to hit the target because I couldn't see anything," Johnson said after the round. "But once you got past the cold, it was pretty easy to concentrate. Once it was your turn, you just had to stop shaking to shoot."