What adjustment might indicate a shooter consistently shoots to the left?

The adjustment that indicates a shooter consistently shoots to the left is related to "cast-on or cast-off."

When a firearm is adjusted for cast-on or cast-off, it refers to the alignment of the stock in relation to the shooter's shoulder and eye position. If a shooter consistently hits to the left, this may suggest that the stock's angle or alignment is not fitting properly to their body, causing a misalignment with their line of sight. Cast-on is when the stock is angled toward the left for a right-handed shooter, and cast-off is when it is angled toward the right.

In a scenario where adjustments for cast-on or cast-off are made, if the corrections do not align the shot pattern with the point of aim, it indicates a persistent shooting issue, related directly to how the rifle is fitted to the shooter. Proper fit ensures that the shooter can align the sights accurately with their intended target, minimizing any side-to-side shooting errors such as shooting to the left.

By adjusting the cast, the shooter can achieve a more natural alignment that helps improve accuracy, particularly for those who consistently struggle with left-ward impacts.