Variations in brass weight can lead to which two problems?

Variations in brass weight can significantly impact both case capacity and pressure problems, which makes this answer the most accurate. When the weight of brass cases varies from one round to another, it can influence the internal volume of the case, thereby affecting the case capacity. Changes in case capacity can lead to inconsistent amounts of powder being loaded, which subsequently alters the velocity and energy of the ammunition when fired.

Additionally, changes in case capacity can also have a direct influence on chamber pressure. For example, if a lighter case holds less powder but is loaded to the same overall cartridge length, it may result in higher pressures than intended. Conversely, if a heavier case allows for a greater volume but with the same amount of powder, the pressures may be lower than expected. Such variations can lead to safety concerns and inconsistent ballistic performance.

Understanding how brass weight influences these two aspects is crucial for reloaders and shooters aiming for precision and reliability in their ammunition.