Joseph Gwinn wrote in
:

In article
,
" wrote:

On May 20, 11:05*am, Joseph Gwinn wrote:

I wonder if simply shaking each round near the ear and both
listening and feeling how much mass is moving would suffice to
detect grossly out of range
powder loads.

The vision systems will have difficulty telling a very thin layer
of powder from
a full load unless there is some kind of probe rod involved.

Joe Gwinn

Shaking each round would take a lot of time. But maybe you could
roll the cartridges down a incline. The powder tumbling inside would
take some energy. A cartridge without powder might fall a bit
further out and one with a double load might fall short.

But would it work well enough? Tom said he had one short every 5,000
rounds or so.


Would probably only work for rimless brass, if it works at all. But
could be worth trying.

I think that the powder weight is a small fraction of the weight of
the entire round.

In a "hardball" 45 ACP round, you are looking at a 230 grain bullet and a
couple grains of powder. The stuff often literally is a "powder", and it
doesn't really rattle. Some rifle powder has larger grains, and you can
hear it, but it depends a lot on the specific powder. Pistol powders are
often small flat flakes, and they just don't rattle much.

Doug White