The versioned bullets are a way for us to differentiate bullets with similar characteristics.
For example, a 223 55gr FMJ. We often have two or three types of this bullets available. Even though the main description is the same, each version has slightly different profile and consistency characteristics. You can use the price, product description and reviews to help you decide which one is right for you.
When you need more bullets, the version number will allow you to reorder the same bullets consistently.