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Re: [OM] shutter speed

Subject: Re: [OM] shutter speed
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Tue, 22 Dec 2009 06:37:36 -0500
At the highest of 4 charge levels for 120mm mortars the muzzle velocity 
if about 1050 feet/second or double that for the 60mm mortar.  So that's 
even tougher for a Hassy 500.  But if fired at the lowest charge level 
the muzzle velocity is only 335 feet/second vs 500 for the 60mm.

Chuck Norcutt

Rick Beckrich wrote:
> FWIW- back in the late 70's I did several shoots for the Washington Army
> National Guard at the Yakima Firing Range (think high desert). Someplace I
> have several prints that plainly show a mortar rounds in flight from track
> mounted 120mm mortars... and as I recall, these were shot with a Hassey 500
> - not exactly a shutter speed champ.
-- 
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