Answer :
Final answer:
Using a round ball in a muzzleloader provides a limited range compared to conical bullets due to hindrance from air resistance and the shape factor. The shape also prevents any significant improvement in penetration, accuracy, and reduced recoil, even with a larger muzzle velocity.
Explanation:
When using a round ball for a projectile in a muzzleloader, the key feature is that it has a limited range compared to conical bullets (Option D). The round ball's shape does not lend itself to long-distance travel due to increased air resistance, reducing its range drastically compared to the aerodynamically superior shapes like conical bullets.
Even if the round ball has a larger muzzle velocity that could decrease deviation in the vertical direction and increase the time of flight, its shape would not support better penetration or reduced recoil. As a result, it won't provide improved accuracy at long distances (Option A).
Therefore, a round ball as a projectile has reduced efficacy due to its inadequate shape that affects its range, penetration capability, accuracy, and recoil effect compared with other bullet shapes.
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