The Weatherby 18i Deluxe is a 20-gauge semi-automatic shotgun with a high-grade walnut stock and nickel-plated aluminum receiver. The inertia-operated action keeps the mechanism simple and reliable, and the 28" vent rib barrel is well-suited to upland hunting and sporting clays. 
 

Key Specifications 

• Model: Weatherby 18i Deluxe 
• Caliber/Gauge: 20 Gauge 
• Action: Semi-Auto 
• Chamber: 3" 
• Barrel Length: 28" 
• Overall Length (OAL): 47.5" 
• Capacity: 4+1 Rounds (2+1 with standard shells) 
• Weight: 6.50 lbs 
• Sights: Fiber Optic Front 
• Stock Material: High-grade Walnut 
• Receiver Material/Finish: Nickel-plated Aluminum 
• Trigger Type: Standard 
• Safety System: Crossbolt Safety 
   
  The inertia system cycles consistently while keeping recoil manageable, and the fiber optic front sight picks up fast in low light. Interchangeable chokes (IC, IM, M, I, F) give flexibility across different game or target situations. At 6.5 lbs the gun is easy to carry through the uplands. The engraved receiver adds some visual distinction without affecting function.

The 18i Deluxe gets consistent positive attention for its walnut stock and the feel of its semi-auto action. Owners frequently note it cycles smoothly through a range of loads, which is a real advantage for 20-gauge shooters who rotate between field and lighter target loads. Recoil is generally described as mild and manageable, which is appreciated for extended range sessions.

Some discussions touch on weight balance, particularly from shooters coming from lighter guns, and a handful weigh the price against other options at the same tier. Overall the sentiment skews favorable, with most buyers treating it as a solid dual-purpose gun for hunting and clay sports.