Product Summary
The Flatline Ops True Bore is a precision tool designed for long-range shooters to ensure their rifle’s bore is perfectly level. It attaches securely to the barrel crown using a high-strength magnet, allowing for quick and easy adjustments. By centering the bubble between the lines, shooters can accurately calibrate their Angle Cosine Indicator (A.C.I.). This device is essential for tightening groups and ensuring consistent accuracy during long-range precision shooting.
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