I inherited a 32 remington not a special. My grandpa says it is a center fire rimless. Is this possible?

I took Akluis's advice and doubled checked with my grandpa. He originally told me that it was a 32 remington special. We examined the gun and found it to be made by Remington and it is a 32. I do have some cartidges 170g sp centerfire, but they are rimless. The only number we could find was C54802 which was located near the chamber. Can anyone tell me if I can find ammunition for this and what it is worth? Thank you.