Quick Answer
The 6mm ARC is a more efficient and effective caliber for coyote hunting compared to the .243 Win due to its increased case capacity, resulting in a larger powder capacity, and a flatter shooting trajectory. This allows for better expansion and deeper penetration, making it a more reliable choice. The 6mm ARC also offers a higher ballistic coefficient.
Ballistic Performance
The 6mm ARC has a slightly longer case length than the .243 Win, which translates to more case capacity. This increased capacity allows for a heavier bullet loading, typically up to 105 grains. With a heavier bullet, the 6mm ARC can maintain its trajectory better than the .243 Win, especially at longer ranges. For example, at 400 yards, a 95-grain 6mm ARC bullet drops only 21.5 inches less than a 60-grain .243 Win bullet. This difference is crucial when hunting coyotes at longer ranges.
Hunting Performance
In terms of hunting performance, the 6mm ARC has shown to be more effective in coyote hunting due to its flat shooting trajectory and deep penetration. The 6mm ARC can easily take down coyotes at longer ranges with a single shot, making it a reliable choice for hunting in areas with thick cover. Additionally, the 6mm ARC is less likely to over-penetrate and cause unnecessary damage to surrounding areas.
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