Why does your position deteriorate over the course of a series without you realizing it?
Your position can gradually change over the course of a series without you noticing it. Feet, pelvis, shoulders, grip, and breathing evolve slightly and can eventually completely transform your grouping.
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Why a small deterioration at the muzzle can ruin the accuracy of a rifle
The projectile has already traveled through the entire barrel. However, the last few millimeters can still determine the quality of the shot.
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