say goodbye to your shotty soon

[00111001]

Someone explained to me once how to get a rifle round to go through a shotty. You need to modify the shell, but that does mean that you can use:
1 - a rifle round that's been fired already (obviously not too damaged to effect trajectories) - which may or may not be traceable to a legally registered firearm
2 - an untraceable round as there's no way that it can be traced back to the individual shotty.

I'm not 100% sure it's viable, and I'm fairly certain I saw something similar on Columbo one time, but could be handy to know at some point.

Plus I really wish these fuckers would learn to shoot properly, I mean how'd you miss with a shot gun (unless you've lopped the end off?)