Quick Answer
Rifled shotguns offer a significant edge in accuracy and penetration over traditional rifles when hunting at close to medium ranges, especially for slugs. This is due to the rifled barrel's ability to impart a spin to the projectile, resulting in improved stabilization and flight. Rifled shotguns can also achieve velocities and penetration similar to traditional rifles.
Rifling for Shotguns: Understanding the Benefits
The key to getting the most out of a rifled shotgun is to understand the type of rifling used. A standard rifled shotgun typically features a rifled barrel with 8-12 grooves, with a twist rate of 18-20 inches per turn. This rifling pattern helps to stabilize the slug and impart a spin, resulting in a more consistent and accurate shot.
Choosing the Right Slug
When selecting a slug for a rifled shotgun, it’s essential to consider the weight and type of slug. Heavier slugs, typically weighing 1 ounce or more, offer better penetration but may be less accurate at longer ranges. A good starting point is to choose a slug with a weight of 1-1.25 ounces and a velocity of around 1,600-1,800 feet per second.
Real-World Results
In practice, rifled shotguns have proven to be highly effective at close to medium ranges. In one study, a rifled shotgun was able to consistently hit targets at 100 yards, with an average group size of 2.5 inches. At 150 yards, the average group size increased to 5.2 inches, but the slug still managed to penetrate to a depth of 14 inches in a solid oak target. These results demonstrate the potential of rifled shotguns for hunting and target shooting applications.
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