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Rifles, Reloading, Optics, Equipment
Reloading
Does seating depth a have this large impact on group size?
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<blockquote data-quote="Bart B" data-source="post: 1136720" data-attributes="member: 5302"><p>Barrel harmonic frequencies, as well as the barrel's resonant frequency, is the same for every shot as long as it's totally free floating. The barrel's metal properties don't change from shot to shot and neither does the frequencies it vibrates at. The amplitude the barrel whips and wiggles at will be the same for each shot of a given load.</p><p></p><p>The amplitude and directions of those vibrations are primarily controlled by the direction of and how far the bore axis is away from the center of mass holding the barrel. These are controlled by the stock design and how the rifle's held by the shooter.</p><p></p><p>If the barrel bounces off any point in the stock fore end, the harmonic frequency that controls the bullet exit direction at the muzzle will change with the external pressure applied to the fore end.</p></blockquote><p></p>
[QUOTE="Bart B, post: 1136720, member: 5302"] Barrel harmonic frequencies, as well as the barrel's resonant frequency, is the same for every shot as long as it's totally free floating. The barrel's metal properties don't change from shot to shot and neither does the frequencies it vibrates at. The amplitude the barrel whips and wiggles at will be the same for each shot of a given load. The amplitude and directions of those vibrations are primarily controlled by the direction of and how far the bore axis is away from the center of mass holding the barrel. These are controlled by the stock design and how the rifle's held by the shooter. If the barrel bounces off any point in the stock fore end, the harmonic frequency that controls the bullet exit direction at the muzzle will change with the external pressure applied to the fore end. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Does seating depth a have this large impact on group size?
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