1. She was born to... [dance]. 2. He's a natural. 3. She could do it in her sleep. 4. He knows it inside out. 5. She knows [New York] like the back of her hand. 6. She's a walking encyclopedia of... [philosophy]. 7. He's in a class of his own. 8. He's the best in the business. 9. She's very gifted. 10. He's a [chemistry] whiz.
As its name indicates this gun has two barrels aligned horizontally and stacked vertically. There is usually one trigger however some models have two. Within this type there are three subgroups of specification: trap, skeet, and sporting. Trap guns are generally heavier and longer barreled (normally 30 or 32 in or 0.76 or 0.81 m) with tight choking and designed to shoot slightly above the point of aim. Skeet guns are usually lighter and faster handling with barrel length from 26 to 28 in (0.66 to 0.71 m) and with fairly open chokes. Sporting models most often come with an interchangeable choke facility and barrel lengths of 28 in (0.71 m), 30 in (0.76 m), and 32 in (0.81 m) according to preference.