Winchester X45CBB Big Bore 45 Colt 250gr SJHP Ammo 20 Rounds

The Winchester X45CBB Big Bore delivers maximum stopping power for 45 Colt firearms with its 250-grain semi-jacketed hollow point design. This ammunition combines controlled expansion with deep penetration, making it effective for both hunting large game and personal defense applications.

What Makes This Different

Winchester's Big Bore line features heavier bullet weights specifically engineered for magnum revolver performance. The semi-jacketed hollow point construction provides controlled expansion while maintaining structural integrity through heavy bone and tissue. At 250 grains, this load generates significantly more energy than standard 45 Colt offerings, delivering 850 feet per second muzzle velocity with 400 foot-pounds of energy.

Key Features

• 250-grain semi-jacketed hollow point bullet for maximum terminal performance
• Optimized powder charge for consistent velocities in 4.75" to 7.5" barrels
• Nickel-plated brass cases resist corrosion and aid extraction
• Large rifle primers ensure reliable ignition in all weather conditions
• Compatible with Colt Single Action Army, Ruger Blackhawk, and similar 45 Colt revolvers
• Factory-loaded to SAAMI specifications for safe pressures
• 20 rounds per box, 10 boxes per case (200 total rounds)

Field testing demonstrates consistent 2-inch groups at 25 yards from quality revolvers, with reliable expansion in ballistic gelatin. The heavy bullet weight maintains trajectory better than lighter loads at extended ranges, making it suitable for hunting deer-sized game within 75 yards. Law enforcement agencies have adopted this load for backup revolvers due to its proven stopping power and barrier penetration capabilities.

Technical Specs

• Caliber: 45 Colt (.452 diameter)
• Bullet Weight: 250 grains
• Bullet Type: Semi-Jacketed Hollow Point (SJHP)
• Muzzle Velocity: 850 fps (6" barrel)
• Muzzle Energy: 401 ft-lbs
• Case Material: Nickel-plated brass
• Primer: Large rifle, non-corrosive
• Country of Origin: United States
• Manufacturer: Winchester Ammunition

Professional shooters recognize Winchester's century-plus reputation for consistent ammunition manufacturing. This Big Bore load represents proven ballistics backed by extensive quality control testing, ensuring reliable performance when accuracy and stopping power matter most.