1. Opening in the rear of the barrel of a gun where bullets can be loaded
   - breech, rear of tube

Type of: opening

Part of: barrel, cask

• 41
• 41st
• 42
• 42nd
• 43
• 43rd
• 44
• 440 yards
• 44th
• 45
• 45th
• 46
• 46th
• 47
• 47th
• 48
• 48th
• 49
• 49th
• 4th
• 4to
• 4WD
• 5
• 5-hitter
• 5-hydroxy-3-methylglutaryl-coenzyme A reductase