Rio BlueSteel Royal 20 Gauge 3" 1oz #4 Shot Shotshells - 25 Rounds

The Rio BlueSteel Royal RBSM204 delivers consistent waterfowl performance with premium steel shot construction in a 20-gauge platform. This ammunition combines Rio's proven powder formulations with precision-manufactured steel pellets for reliable cycling and effective downrange energy transfer.

What Makes This Different

Rio's BlueSteel Royal line features specially treated steel shot that maintains spherical integrity better than standard steel offerings. The 3-inch magnum hull provides 23% more powder capacity than standard 2.75-inch shells, generating higher velocities while the 1-ounce payload delivers dense pattern coverage. Quality control testing ensures consistent velocities within 25 fps across production lots.

Key Features

• Premium steel shot construction eliminates lead concerns in waterfowl zones
• 3-inch magnum hull maximizes powder capacity for increased velocity
• 1-ounce payload provides optimal pellet count for #4 shot size
• High-quality plastic wad system protects barrel and improves patterns
• Brass-plated steel base prevents corrosion in wet conditions
• Factory-crimped closure ensures reliable feeding in semi-automatic shotguns
• 25-round packaging reduces per-shell cost compared to smaller quantities

Field testing demonstrates effective performance on medium waterfowl at ranges up to 40 yards, with #4 shot providing the ideal balance between pellet energy and pattern density. The steel shot construction meets all federal non-toxic requirements while maintaining knockdown power on ducks and geese. Consistent ignition and complete powder burn contribute to reliable cycling in gas-operated semi-automatics.

Technical Specs

• Gauge: 20
• Shell Length: 3 inches
• Shot Weight: 1 ounce
• Shot Size: #4 steel
• Shot Type: Premium steel
• Hull: High-strength plastic with brass base
• Primer: Non-corrosive
• Packaging: 25 rounds per box
• Manufacturer: Rio Ammunition, Spain

Rio's quality manufacturing standards and competitive pricing make the BlueSteel Royal series a practical choice for waterfowl hunters requiring non-toxic ammunition. The 25-round box quantity provides sufficient shells for extended hunting sessions while maintaining cost efficiency.