Does Barrel Vibration Exist and Does it Matter

[CharlieNC]

OK. An ongoing question. A lot of information and misinformation is out there. Yes it matters. The attached link to a Paper by FN covering a redesign of a SAW barrel is probably one of the best that is available that demonstrates the impact.

https://apps.dtic.mil/sti/tr/pdf/ADA434693.pdf

Good info. The high speed video demonstrates the large cantilever beam frequencies everyone likes to reference play no role in actual accuracy considerations because the bullet has already left the barrel before they kick in. On the other hand there is a faster transient cycle around the bullet exit time which matters. Interesting.

 

[big5ifty]

Barrel = tuning fork.

^ nice and simple.

I would add

barrel block = tuning fork dampener