Originally Posted by bcraig
Originally Posted by The_Real_Hawkeye
Chain firing is not urban legend. Absent some preventative measure (Wonder Wads or greasing the chambers) it is highly likely to occur.

Sounds like the fit of the ball is very Important.
https://www.youtube.com/watch?v=GrfBOJnw06U&t=4s

I've heard of cases where the ball is tightly fit, even producing the ring of lead upon loading, and getting chain fires.