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Old 11-16-2019, 06:00 AM   #41
Rupert
 
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Join Date: Aug 2004
Location: Wellington, NZ
Default Re: 25mm Payload Rifle [Ultratech]

Quote:
Originally Posted by Anthony View Post
One of the problems with ETC is that higher velocity shouldn't affect 1/2d range; unless it's dealing with speed regimes where it's drag coefficient changes dramatically, 1/2d should be purely a function of drag coefficient and sectional density. TBH, ETC shouildn't do anything meaningful to a GL, because the reason they aren't higher velocity isn't because of any limitations of propellant, they'd just be uncontrollable, and ETC doesn't help recoil.
Being able to have a smoother pressure curve that stays at the peak longer should allow a slightly higher velocity and a lighter weapon. However, most grenade launchers use a high-low pressure system that gives much of that effect anyway, so the advantage would be small.
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