OK, now I've got it. But I'm a word guy, and you techie types are still spreading confusion with the use of "peak". Pressure only peaks at one point in the barrel. Whatever the pressure is 6" or 12" or 18" down the bore, it ain't a "peak". It's just the pressure at that point. Look at it in reverse: a car accelerating from a stop. If it reaches 25 mph in, say, 3 seconds, that is not the "peak" speed of the car, unless it stops accelerating at that point. That's just its speed, as measured at that point. Peak is not reached until the point at which the car ceases to accelerate. Same for pressure within a shotgun barrel, but in reverse. If you use "peak" for anything but the highest pressure measured, I can guarantee that you will seriously confuse the non-techie public. It will cause them to believe that pressure within a barrel works like this: ^^^^^, going up and then back down numerous times, rather than like this: \.
OK, Larry, point taken. In the future, I'll refer to chamber peak pressure (which will be the single peak) with the term "peak." Peak pressure at other locations will be location maximum pressure. Now, just to be clear about what happens, as the wad passes any given point of the barrel, the pressure rises rapidly to the "location maximum pressure," and then decays to atmospheric shortly after the wad exits the barrel. How does that set of words play for you, Larry? Will it convey the technology to non-techies?
This is one of the things I love about this site. We can discuss in depth to get both the technology and the words right. Thanks for your input, Larry.
