Assertion: bullet's muzzle velocity | /r/HasProperty | divided by the twist length
Facets:
Source sentences:
text: As a rule of thumb, a projectile fired from a smaller caliber gun spins close to 100% of the rate determined by the muzzle velocity divided by the twist length.
text: By contrast, due to slippage caused by inertia, large-caliber projectiles spin at about 90% of the rate determined by the muzzle velocity divided by the twist length.