25mm Payload Rifle [Ultratech]

[Rupert]

Originally Posted by Anthony

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.