Re: Juenke icc machine
Gary, you should back away from this un.
The ICC uses ultarsonic thickness measurement for bullet jacket variance. It can also be used to see brass thickness variance, so I've heard, but I used mine only for bullets.
The real benefit behind it is to spot bullets with truly small jacket thickness variance, and hopefully center of gravity would then be just that. These would be the bullets to release in a match.
This bullet factor and tool have actually been proven significant in the past. It's not just another feel-good toy.