[Electronic M]

The ring will likely not have a signifficant effect. I could see some one pulling back on reflex and that reflex causing them to drop or fire the gun depending on how they were holding it and the combination of reflex and reaction.
Later on that same Silvertone I was doing a purity adjustment, and happened to touch a bare spot on the vertical winding on the yoke. My reflex caused me to yank my arm out hard enough to break an ancilary ground wire that was blocking my motion, and mildly mess up some other things I've since fixed and forgot. That is among the worst jolts I've gotten.

If the set was just turned off then the charge on the HV system will likely be stronger BTW.

Edit: Touching the chassis of the set will likely worsten any jolt from the HV, B+, etc.