Final answer:
Bullet weight, barrel length, and bullet performance impact cartridge performance.
Explanation:
Bullet weight is a crucial factor in determining the performance of a cartridge as it affects the acceleration and motion of the bullet inside the barrel. Additionally, the barrel length plays a role in the speed and trajectory of the bullet, impacting its overall performance. Contrary to the statement, bullet performance is not always consistent due to various factors like manufacturing quality, external conditions, and design variations.
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