"As for CIP numbers, per the latest information I have--which comes from the British Association for Shooting and Conservation--it now appears that velocity is measured at 2.5 meters."
"I'm betting that 1450 figure is true muzzle velocity."
This is consistent how? Is not Hull Cartridge actually governed by CIP standards?
"Jones, we all recognize that there's a drop in velocity from the muzzle to 3 feet. We understand why. We're only disagreeing about how great that drop is."
Not exactly. In the case of a velocity decrease totally out of proportion to the second 3 feet, I certainly do not understand the 'why' of a 100 fps deceleration in the first 3 feet at all. That's what I'm trying to 1. verify, 2. understand.
I'm not in denial about not having a laboratory chronograph system, I'm am however stating that I do not observe this dramatic deceleration on what I have.
Has anyone verified Lowry's experiment? That's the essence of science, a repeatable experiment. Data seems to be scarce.
Has anyone seen interior ballistics graphs similar to what Butler published in the 70's that incorporate the new thinking since?
This is all very interesting, and I'd like to learn more.
Miller's post totally baffles me. The theoretical time of flight in a vacuum seems to be dependent on MV and only MV... assuming constant gravity vector. Is Newton wrong too?
