For precision loading, which tool allows for gradual powder addition?

The tool that allows for gradual powder addition during precision loading is a powder trickler. A powder trickler is specifically designed to dispense small, precise amounts of powder gradually, which is essential for achieving accurate and consistent charges. This is critical when loading for precision, as small variations in powder charge can significantly impact the performance of the round.

By using a powder trickler, reloaders can make fine adjustments to the charge weight, ensuring that each load is as close to the desired weight as possible. This level of control is particularly valuable in precision shooting, where consistency is key to accuracy.

In contrast, a powder scale is typically used to measure the weight of powder rather than dispense it, while a powder measure is designed to throw a specific volume of powder but may not provide the same level of granularity for adjustments. A loading block, on the other hand, serves as a platform to hold cases but does not contribute to the powder dispensing process.