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The Rio Royal Star slug is a solid choice for anyone running a 20 gauge smoothbore shotgun. These are rifled slugs designed specifically for smooth barrels, delivering consistent performance whether you're hunting or heading to the range for practice. The 7/8 ounce projectile runs downrange at 1360 fps, striking a practical balance between power and handling. You get 25 rounds per box, which is the standard for most slug ammunition.
Rifled slugs work best in smooth barrels, and Rio's Royal Star line maintains that tradition. The rifling on the slug itself creates spin as it travels down the barrel, improving stability and accuracy compared to non-rifled alternatives. Most hunters find these slugs shoot tight patterns at typical hunting distances when paired with the right choke. Real-world feedback shows people getting acceptable 5-shot groups out to 50 yards with properly matched shotguns and chokes.
At 1360 fps, these Royal Star slugs sit right in the middle of the performance spectrum. That velocity is energetic enough for effective hunting but doesn't generate excessive recoil that some find unpleasant with lighter 20 gauge shotguns. This makes the Rio Royal Star approachable for shooters who prefer a softer shooting option without sacrificing terminal performance. The 7/8 oz weight keeps things manageable while delivering the stopping power hunters expect from a dedicated slug load.
Rio has been making ammunition for over 125 years and built their reputation on consistency and quality control. These slugs carry that same commitment to reliability. Users consistently report that Rio ammunition functions as intended and provides good value for the performance you get. Whether it's for deer season, range practice, or defensive shotgun training, Rio ammunition has earned trust across multiple use cases.
Rifled slugs are designed for smoothbore barrels. The rifling on the slug itself creates spin for stability. Sabot slugs are smooth projectiles that load in a plastic cup and are meant for rifled barrels, where they conform to the barrel's rifling. Using the wrong type can damage your gun or cause accuracy issues. Rio Royal Star slugs are rifled slugs for smoothbore shotguns.
These are designed specifically for smoothbore barrels, so they work great in most 20 gauge field shotguns and hunting models with smooth bores. If your shotgun has a rifled barrel, you'll want sabot slugs instead. Check your barrel or manual to be sure, or talk to a gunsmith if you're unsure.
Most hunters find the Rio Royal Star effective out to 50-75 yards with a smoothbore shotgun when they do their part. With better equipment like a rifled barrel or slug gun, some shooters see acceptable accuracy at longer distances, but that depends on your specific gun setup and skill level. Practice at the range first to know your gun's capabilities.
At 7/8 oz and 1360 fps, Rio Royal Star slugs generate moderate recoil that's noticeably lighter than 12 gauge slugs. Most shooters find them manageable, especially compared to heavier magnum loads. The actual felt recoil depends on your shotgun's weight and stock design, but this load is generally considered pleasant to shoot for extended practice sessions.
| Caliber/Gauge | 20 Gauge |
|---|---|
| Cost per Round | 1.16 |
| Length | 3.875" |
| Manufacturer | |
| Manufacturer Part Number | RSL20 |
| Shipping Weight | 1.85 |
| Units per Box | 25 |
| UPC | 8435101625470 |
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