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Alan Alford's build

2250b Tube for later move to bulk CO2.
12" .22 Caliber Barrel from Doomsday Backpacker
Brian & Assoc. Alluminum Breech with 2 barrel screws
Original site rear
Pin site on Custom Mt. Airguns Muzzle Break
2x1 Centerpoint Scope with UTG dovetail adapters
Mountain Airguns Custom Bolt and Handle
Mountain Airguns Custom Power Adapter and spring guide
B&A Boss Valve for extra Power

Built mainly for fun and to shoot at local Field Trial Pistol Match.

It currently it shoots a 14.3 Crosman Hunting Pellet at about 530 fps in a 72 degree room for 8.92 FPE.



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If pellet were fired at 800fps from a barrel with...

June 3 2011 at 3:55 PM
Ron  (Login oo7fuzz)
Crosman Forum Member
from IP address 24.167.225.137


Response to What would that be equivilant to?

..rifling which made one turn in 12 inches, the rpm would be 48000.

A conventional Dremel moto Tool has a shaft rotation of around 35000rpm.

Then there are these:
http://en.wikipedia.org/wiki/Flywheel_energy_storage

But a question to the scientifically minded.
We say that a spun pellet may go into precession and nutation while traversing the air at high speed.

To illustrate precession and nutation, we are often directed to observe the gyrating antics of a childs top as it spins about it's axis.

So the question is, would the childs top go into the precession and nutation mode if the top were perfectly ballanced mass-wise and axis-wise?


    
This message has been edited by oo7fuzz from IP address 24.167.225.137 on Jun 3, 2011 3:59 PM


 
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