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From: nanis@llex.ll.mit.edu (Jeff Nanis)
Newsgroups: sci.military
Subject: Re: Secondary Armament
Message-ID: <1991Jun18.074427.15056@amd.com>
Date: 14 Jun 91 19:20:44 GMT
References: <1991Jun14.080001.19997@amd.com>
Sender: military@amd.com
Organization: MIT Lincoln Laboratory
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From: nanis@llex.ll.mit.edu (Jeff Nanis)


cfreund@PICA.ARMY.MIL (CCL-L) writes:
>Caliber - There are few calibers readily available for the secondary
>armament roles.  Normally 7.62 NATO is considered the minimum caliber and
>20 and 30mm cannon cal is starting to get a bit large, along with 40mm
>grenades. This leaves us with the 7.62, 12.7, 20, 30 (30x113), and 40
>(40x53R) mm rounds.  There is also a 15x115mm Belgium round and a 16mm US
>round in development.  There is also a 30mm grenade used by the USSR.

I seem to recall that there are actually two different calibers of
40 mm grenade: a low-velocity round for the M79/M203 that can also be fired
from the Mk19, as well as a high-velocity round for the Mk19 and the various
helo grenade launchers. Does anyone have more data on this?

--
Jeff Nanis
nanis@ll.mit.edu
An official opinion? Not on my life.