Shire took the paper and pen, drawing as he spoke to Dominic: "We could perhaps design the gun muzzle like this, with openings on both sides in the shape of a duckbill."
Dominic stared at the drawing in a daze: "I've never seen such a strange muzzle before. What use could it have?"
Shire put down the pen and raised his eyebrows.
Suddenly, Dominic understood: "Could it, be changing the spread pattern?"
"You guessed right." Shire answered: "The openings on both sides would make the pellets spread more horizontally rather than vertically."
Saying this, Shire picked up the shotgun, aiming the muzzle at a row of neat chairs in the conference room:
"Think about it, Dominic."
"On the battlefield, we often face a row of people standing in front of us."
"After firing, the pellets going up or down are useless; they either fly into the sky or hit the ground."
"Only the pellets fired horizontally can effectively hit the target."
