Hello Ambishooter,
Thank you for bringing this to our attention. We appreciate your interest in our Remington Small Pistol Primers. It's completely understandable that the different designations might be confusing if you're more familiar with other brands like Winchester, Federal, CCI, and S&B.
To clarify, the Remington Small Pistol Primers come in two varieties: the 5-1/2 and the 1-1/2. The 5-1/2 primers are considered magnum primers, which means they are designed for use with high-pressure loads, typically used in magnum pistol cartridges.
However, if you're reloading 9mm ammunition, you should opt for the 1-1/2 Small Pistol Primers. These are the appropriate choice for standard 9mm loads.
You can find the Remington 1-1/2 Small Pistol Primers on our website using the following link: [Remington 1-1/2 Small Pistol Primers - Box of 1000](
https://www.gotenda.com/product/remington-1-1-2-small-pistol-primer-box-of-1000/).
We apologize for any confusion caused, and we're in the process of updating the product title to make it clearer that the 5-1/2 primers are intended for magnum applications.
If you have any further questions or need additional assistance, please don't hesitate to reach out.
Best regards,
Team Tenda