Priming Problem

[rsmithsr50]

the SPUD is smaller in dia than a std primer so it enters and aligns. it is the radius before the end that actually swages.

I agree in full with you.
Murphys law?
Operator training, alignment, sufficently talented fool?
It is possible to produce results outside the design envelope.
Swager is a great tool. I continue to use mine.

 

[Rustytigwire]

the SPUD is smaller in dia than a std primer so it enters and aligns. it is the radius before the end that actually swages.

I would like to clarify that the sliver pushed in was a rare event. It did in fact happen though by whatever cause or ineptitude on my part. Often enough that I look at every one, Every time.
Trust but verify.