If your rifle is shooting 1.5 MOA, can flash hole uniforming make big changes in accuracy?

In this context, the assertion that flash hole uniforming cannot make big changes in accuracy when a rifle is shooting 1.5 MOA is grounded in the understanding of precision shooting and the factors that influence accuracy.

1.5 MOA (Minute of Angle) translates roughly to a 1.5-inch dispersion at 100 yards, indicating a reasonable level of consistency in shot placement. Flash hole uniforming, which involves ensuring all flash holes (the small holes that allow ignition from the primer to the powder charge) are the same size and shape, is a technique aimed at enhancing uniformity in ignition. However, when a rifle is already demonstrating a certain level of grouping (such as 1.5 MOA), the contribution of flash hole uniforming to improving that grouping is often minimal compared to other factors such as barrel quality, ammunition consistency, and shooter technique.

For a well-tuned rifle with good quality components and loaded ammunition, the variability introduced by uneven flash holes may not be significant enough to lead to noticeable improvements in accuracy. Therefore, while flash hole uniforming can enhance the consistency of ignition and could lead to marginal improvements, it is unlikely to dramatically change accuracy for a rifle already operating at a particular level.

Other considerations