[Foxbat]

Sooner or later you will make a round with no powder. Or worse yet - whole bunch of them, mixed with good ammo.

Bad news... as these are often hard to find. People shake them and listen... but this is often hard, as the charge can be small, and your hearing... well, let's face it, some of us are not exactly spring chickens.

But all is not lost, and there is a very simple way of finding the empty rounds among the good ones. You need to spend $15 on this listening device.

The microphone on this unit is on its top, so hold the round pressed to it, as shown in the picture, and shake the round length-wise. Make sure the headphones cord is not dangling freely, as it will create its own noise - simply tape it to the body.

Very quickly you will learn to spot a full round, an empty one, and the ones with just a small amount of powder, you will heat it all very clearly.