The ringing of pre-WWI canadian .303 ammunition


Here’s a page of a 1917 canadian report. Some information may be read about the ringing of .303 ammunition in storage to make it serviceable. I understand that by “ringing” they mean holding secure the primer in the case by means of a punched ring around the primer, but I may be wrong. Sorry for the low quality -the graphic has been extracted from a pdf document.


The following is an explanation of “ringing” from a person highly positioned in Canadian defence industry quality control:
In short it is the inspection of a material by means of physically hitting
a part with a hammer to detect any differences in sound or by means of
using ultrasonic inspection where by a crystal is (rung) by a generator to
a certain wavelength approx. .5 MHz to 35 MHz this wavelength is introduce
in a material to determine internal flaws. In both cases a reference
standard with know defects are use for calibration.


Vlad - interesting stuff, but I think in this case, “ringing” refers to the ring-type primer crimp so often used on military ammunition. I am sure that is what the preceding document is referring to, from the various descriptions and terminology in the report.

John Moss