Math teacher, I know that. Which is why they tune the metal bars on a xylophone and tubes on a chime to a given frequency by grinding off tiny amounts of metal.
There's also variables across a given lot of primers, bullets, powder, cases, firing pin impact and everything else. Many are much larger than what there is across a bunch of otherwise identical rifle barrels. If there really was a noticable difference betwen barrels, then why would the 7 or 8 Hart barrels with the same dimensions I've worn out all shoot the same load recipie with different lots of bullets, powder, primers about 1/2 MOA at 600 yards? And why would a couple dozen rifles all with different barrel length, diameters, bore, groove and chamber dimensions all shoot the same lot of ammo into about 1/2 MOA at 600 yards?
What's the difference between a barrel's harmonic and its fundamental frequency? Which one effects accuracy the most?
What the fundamental frequency range most rifle barrels have when free at both ends and when screwed into an action fixed in the stock and the other end free?
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Last edited by Bart B.; December 28, 2012 at 02:55 PM.