Quick Answer
A box of .280 AI typically contains 20-25 cartridges, depending on the manufacturer.
Cartridge Specifications
The .280 Ackley Improved (AI) is a high-performance cartridge designed for hunting and target shooting. It typically features a 1.338-inch case length and is loaded with a 140-grain bullet. This cartridge is known for its high ballistic coefficient and flat trajectory, making it suitable for long-range engagements.
Ballistics and Performance
The .280 AI is capable of delivering impressive velocities, with 140-grain bullets reaching speeds of up to 3,000 feet per second. This translates to significant kinetic energy transfer, making it effective for hunting medium to large-sized game. In terms of trajectory, the .280 AI has a relatively flat drop over 500 yards, with a total drop of around 30 inches.
Reloading and Performance Optimization
When reloading for the .280 AI, it’s essential to use the correct case length and neck tension to achieve optimal performance. A loaded cartridge with too much case capacity can lead to inconsistent velocities and reduced accuracy. Experienced reloaders can fine-tune their loads to optimize performance for specific shooting applications. For example, a 140-grain bullet loaded at 3,000 fps will achieve a 1-inch group at 100 yards, while the same bullet loaded at 2,900 fps will achieve a 1.5-inch group.
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