Bill Calfee
Gun Fool
Thank you friend Deveng
CYA friends:
CYA is about advancing rimfire accuracy.
______________________________
I'm posting a picture taken by CYA member Deveng.
(I'm posting his picture here, so as not to interfere with his post on another thread.)
This is an excellent picture showing the exact center of the parallel node.
CYA friends, I've placed a couple arrows showing the vibrating width of the end of the 3/32" rod, which looks to be about 3/4", or so.
Using the 3/32" rod allows us to visually see this vibration pattern...since it is so flexible compared to a gun barrel.
The width of the muzzle oscillations of a contemporary size barrel for a RFBR gun is in the .0002"-.0004" range.
If you look at the length of the parallel node in friend Deveng's picture, with the end of the rod with an oscillation width of maybe 3/4", imagine how long the length of the parallel node is in a gun barrel, with the muzzle oscillating only between .0002"-.0004".
Thank you friend Deveng for taking time to run the spearment.
Your friend, Bill Calfee
____________________
PS:
I feel like I'm going to work friend Deveng to death here.....but...
What would give a more realistic representation of the length of the parallel node, in an actual gun barrel, would be if friend Deveng could turn the generator off and take a picture as the oscillations were dying down.....
CYA friends:
CYA is about advancing rimfire accuracy.
______________________________
I'm posting a picture taken by CYA member Deveng.
(I'm posting his picture here, so as not to interfere with his post on another thread.)
This is an excellent picture showing the exact center of the parallel node.
CYA friends, I've placed a couple arrows showing the vibrating width of the end of the 3/32" rod, which looks to be about 3/4", or so.
Using the 3/32" rod allows us to visually see this vibration pattern...since it is so flexible compared to a gun barrel.
The width of the muzzle oscillations of a contemporary size barrel for a RFBR gun is in the .0002"-.0004" range.
If you look at the length of the parallel node in friend Deveng's picture, with the end of the rod with an oscillation width of maybe 3/4", imagine how long the length of the parallel node is in a gun barrel, with the muzzle oscillating only between .0002"-.0004".
Thank you friend Deveng for taking time to run the spearment.
Your friend, Bill Calfee
____________________
PS:
I feel like I'm going to work friend Deveng to death here.....but...
What would give a more realistic representation of the length of the parallel node, in an actual gun barrel, would be if friend Deveng could turn the generator off and take a picture as the oscillations were dying down.....
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