What has more stopping power a 44 cal or a 45 cal?

The stopping power of a caliber depends on various factors, including bullet weight, velocity, and design. Generally, the .45 caliber (typically a .45 ACP) is known for delivering a larger and heavier bullet, which can result in greater stopping power due to its mass and diameter. The .44 caliber, often referring to the .44 Magnum, can achieve higher velocities and energy levels, making it formidable in terms of stopping power as well. Ultimately, the effectiveness of either caliber will vary based on the specific load and the context in which it is used.