Murphy Barrel sets

[Terry]

Any good ideas how to extract chewed up hex dust cores?

It's a long time since I've done it, Trevor, but the only way is to break them up completely and pour the bits out. If the twiddler hasn't got at both ends, remove the lower core to provide an escape route for the bits.

With care, you should be able to drill through the core with successively larger bits. This removes a lot of the debris and makes it easier to break up the (thinner) remains.

Good luck!