Well, Gary, how about speed in feet-per-second, the one used by ANSI and SAAMI, the ones who make the rules in the USA? Other organizations make the rules elsewhere and they use meters-per-metric - second or whatever they like. The point is, they make the rules and Gary B. doesn't. In case of disagreement they always win because they know what they are doing.
And, of course, the ATA uses speed, not drams-equivalent. That's because in the early 1990's the BOD of the ATA decided to accept the judgement of the experts since it makes no sense to do otherwise.
What difference does it make what method is used, when the governing body does not check the speed of shells? You keep referring to the rule book, what difference does it make when there is no enforcement? HMB
Alliant powders have colored flakes which are really electronic data transmitters which transmit to an ATA satellite in geosync orbit the velocities achieved and the weight , in grains, of the payload propelled.
In their charts they do reference drams but that's the only place. Everything else is speed, speed, speed. That is the accepted method of specifying shells speeds.
And the reason is in your own post, though of course you got that wrong too, just as you have for a decade or more, Gary.
1290 fps for 1 1/8 ounce loads may be 3-dram or or 3 1/4 or 3 1/2 D.E. That's why it's useless; it does not denote a specific speed. That's why it cannot be an accepted method of specifying shot speed. It doesn't.
There's no way around it, Gary. It's just a waste of time for everyone for you to claim anything else,and when you do - as you likely will in hours or days - it show you to be a fool, a person incapable of learning anything from your mistakes. Give it up.
"The accepted method of shotshell speed is the Dram equivalent.
There is no other accepted method of arriving at shotshell speeds."
Then what speed does "Max" dram equivalent represent?
The answer is that it doesn't specify ANY specific speed, because what is considered MAX dram is all over the map. Ergo, if the speed designation for Max is arbitrary, the speed designation for any other "dram EQUIVALENT" is arbitrary as well.