The Winchester SX4 Waterfowl Hunter is a semi-automatic shotgun chambered in 20 Gauge with a 28-inch barrel and a 3-inch chamber. It holds 4 rounds. The finish is Mossy Oak Original Shadow Grass camo. 
 

Key Specifications 

• Brand: Winchester 
• Model: SX4 Waterfowl Hunter 
• Caliber: 20 Gauge 
• Action: Semi Auto 
• Barrel Length: 28 in 
• Capacity: 4 rounds 
• Color/Finish: Mossy Oak Original Shadow Grass 
   

Detailed Features 

• 20 Gauge semi-automatic platform 
• 28-inch barrel 
• 3-inch chamber 
• Mossy Oak Original Shadow Grass camo coverage 
• 4-round capacity

Owners of the SX4 Waterfowl Hunter in 20 Gauge appreciate its lighter weight compared to 12 Gauge waterfowl guns, making it a practical option for younger or smaller-framed hunters without sacrificing a full-length barrel. The semi-auto system handles standard 20 Gauge waterfowl loads with minimal drama, though a small number of owners report needing a break-in period before the action runs completely smooth.

The 28-inch barrel gets good marks for swing consistency on passing shots over decoys. Mossy Oak Original Shadow Grass is a proven pattern for open-water and marsh settings, and owners generally feel it does its job without any complaints about durability on the camo finish after regular use.

Value feedback on the SX4 Waterfowl Hunter is positive in the 20 Gauge semi-auto segment. Some buyers note the trigger could be crisper, but the overall package at its price point is considered a reasonable trade-off for a purpose-built waterfowl gun.