What unit of measure is typically used for bullet weight?

The unit of measure that is typically used for bullet weight is grains. Grains are a very small unit of weight that is commonly used in the firearms industry, particularly for measuring the weight of bullets, as they provide a more precise measure for small quantities. Since bullets are generally quite light when compared to other objects, using grains allows for finer differentiation in bullet performance and characteristics, which is crucial for factors such as accuracy, recoil, and terminal ballistics.

Other units such as ounces, grams, and pounds are not standard in the context of bullet weight in firearms. Ounces are generally used in measuring larger quantities or weight of objects, while grams might be used in certain contexts or regions but are less common in the shooting sports community. Pounds would be too large a unit for individual bullet measurements. Therefore, grains remain the industry-standard measurement for bullet weight, making it the correct choice in this context.