Final answer:
The specifications required for bullets in a muzzleloader for hunting deer, pronghorn, or bear depend on the caliber, weight, and muzzle velocity of the bullet.
Step-by-step explanation:
In muzzleloader hunting, the specifications for bullets may vary depending on the game being hunted. For hunting deer, pronghorn, or bear, it is recommended to use a bullet with appropriate caliber and weight. The caliber should be sufficient to deliver enough energy to effectively take down the animal, while the weight should be enough to penetrate through the animal's hide and reach vital organs. It is also important to consider the muzzle velocity of the bullet, as it affects both accuracy and trajectory.