Author Topic: What causes pellets to spiral? (Read 542 times)

steveoh · « **on:** May 23, 2020, 10:21:20 AM »

What causes pellets to spiral? This is another really informative video By Matt Dubber.

Not a valid youtube URL

Alan · « **Reply #1 on:** May 23, 2020, 10:45:58 AM »

This works:

steveoh · « **Reply #2 on:** May 23, 2020, 11:31:11 AM »

Chickenthief · « **Reply #3 on:** May 23, 2020, 01:55:37 PM »

This video actually shows instability:

Alan · « **Reply #4 on:** May 23, 2020, 02:29:40 PM »

Ditto Doh!

rsterne · « **Reply #5 on:** May 23, 2020, 07:34:38 PM »

The root cause of spiralling is dynamic instability.... This often occurs at longer ranges because the forward velocity decays faster than the RPM.... This can trip a pellet over the line between being dynamically stable and unstable.... There are two common solutions to spiralling.... Reduce the velocity or reduce the twist rate.... Both reduce the RPM....

Bob