What are the dimensions and weight of toy BB bullet?

The size and weight of toy BB bullets can vary depending on the manufacturer and type, but usually follow the standard specification range. The following are the general dimensions and weight ranges of toy BB bullets:
Size (diameter): Toy BB bullets typically have a diameter of approximately 6 millimeters (0.24 inches), which is the most common size. However, there are also other sizes of BB shells, such as 8mm and 4.5mm, but these sizes are relatively rare.
Weight: The weight of toy BB bullets is usually measured in grams. The most common weights include 0.12 grams, 0.20 grams, 0.25 grams, 0.28 grams, 0.30 grams, and 0.40 grams. Lighter BB bullets are suitable for low-power toy guns, while heavier BB bullets are suitable for high-power pneumatic guns.