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Hunting
Long Range Hunting & Shooting
barrel flex
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<blockquote data-quote="Deleted member 46119" data-source="post: 1082988"><p>I've seen slowmo of 8in and M1A1 Abrams. They flex plenty.</p><p></p><p>AFAIK bore, profile, bullet weight and charge affect amplitude. Frequency is fixed. The OBT theory put into practical use is to get the bullet to exit the muzzle at the top of the wave just before flexing back down. AIUI Optimal Charge Weight does the same thing form manipulating a different parameter. With OBT, concentration is on velocity and bullet exit. In OCW concentration is on charge and reading the dispersion pattern, selecting the higher and more consistent range. Then fine tuning.</p></blockquote><p></p>
[QUOTE="Deleted member 46119, post: 1082988"] I've seen slowmo of 8in and M1A1 Abrams. They flex plenty. AFAIK bore, profile, bullet weight and charge affect amplitude. Frequency is fixed. The OBT theory put into practical use is to get the bullet to exit the muzzle at the top of the wave just before flexing back down. AIUI Optimal Charge Weight does the same thing form manipulating a different parameter. With OBT, concentration is on velocity and bullet exit. In OCW concentration is on charge and reading the dispersion pattern, selecting the higher and more consistent range. Then fine tuning. [/QUOTE]
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