What pistols can you interchange bullets?

Interchangeable bullets typically refer to firearms that can use the same caliber ammunition. Many pistols from the same manufacturer or those designed for the same caliber can share ammunition. For example, Glock pistols chambered in 9mm can generally interchange bullets, as can most .45 ACP models from various manufacturers. However, it's essential to ensure compatibility with the specific model and verify that it is safe to use ammunition from different brands.