That outlandish "theory" has about the same validity as man-made global warming and other religions based upon junk science. It is a shame that otherwise reasonable people accept such nonsense.
Most sniper rifles overcome it with 1 inch dia barrels...but in lightweight barrels is a KNOWN and MEASURED phenom.
You only display abject ignorance by suggesting otherwise.
A lightweight barrel will vibrate...and will vibrate at different frequencies depending upon bullet weight.
The key to accuracy in a lightweight barrel is to find which bullet weight for the chosen caliber, will exit the barrel at the apex of the vibration's cycle.
That's why they free-float lightweight barrels and that's why the Browning A-Bolt with BOSS is the most accurate lightweight rifle in the world.
Not theory...fact. Try reading Rifle Accuracy Facts by Harold Vaughn.
That outlandish "theory" has about the same validity as man-made global warming and other religions based upon junk science. It is a shame that otherwise reasonable people accept such nonsense.
Maybe and maybe not. My old Mini-14 was pretty accurate right out of the box. When I put on an aftermarket flash hider, it shot like crap. When I removed it, it shot well again.
The only explanation I have is that the flash hider changed the barrel resonance. Maybe you have a better one.