Twist rate ???

[drid]

Does any one no the twist rate on the Vulcan 2 30cal ??? Thanx

 

[bandg]

Not familiar with the Vulcan but I have often measured twist rate on firearms with a cleaning rod and brush. Put rod in, tape at muzzle with a line along the rod, pull out watching for one full revolution and then measure how far you moved it. Maybe not possible with many air guns but should work for most.