Quick Answer
Yes, but you may need to consider the rifle's design, barrel length, and the specific long-range ammo's characteristics to ensure reliable feeding and minimal pressure increase.
Chamber Pressure Considerations
When using long-range ammo in a standard .280 AI rifle, it’s essential to be aware of the potential increase in chamber pressure. The .280 AI is a necked-down version of the .308 Winchester, with a slightly shorter case length. This design change allows for more efficient burning of powders, but it can also make the cartridge more prone to over-pressure when loaded with long-range ammo. As a rule of thumb, look for ammo with a maximum average pressure (MAP) not exceeding 60,000 psi, and a load data that’s specifically designed for the .280 AI.
Barrel Length and Ballistic Efficiency
The .280 AI rifle typically has a longer barrel than other .308 Winchester-based cartridges, which allows for better ballistic efficiency and longer effective ranges. However, when using long-range ammo, the additional barrel length can also amplify the pressure increase. To mitigate this effect, consider using a rifle with a shorter barrel (20-22 inches) or a muzzle brake to help reduce the pressure spike. This will ensure that the rifle can handle the increased pressure without compromising its structural integrity.
Reliability and Feeding Issues
Another critical consideration when using long-range ammo in a standard .280 AI rifle is the potential for reliability and feeding issues. Long-range ammo often features longer ogives and more aerodynamic bullets, which can cause the cartridge to feed more loosely in the chamber. To prevent jamming or failure to feed, make sure to use a high-quality magazine and a well-lubricated bolt. It’s also essential to follow the manufacturer’s recommendations for load data and chamber pressure to ensure that the rifle can handle the stresses imposed by the long-range ammo.
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