When I say "not recommended" all that it means is that it isn't in the data, therefore, not recommended. It doesn't matter why. What the point is is that a guy can sit down with that book and find half again as many choices.
As you say, big deal. The best loads for each will be found in a small group of probably eight powders for each. With those case capabilities, it's not hard to predict what powders will be left out 4831 was left out of 308, for example.
I don't consider the differences to be significant in any way ballistics wise.
There are obvious reasons why the .280 Remington was a flop but the 7-08 is a hit, but if we only decided by max velocity, the results would be different.
As you say, big deal. The best loads for each will be found in a small group of probably eight powders for each. With those case capabilities, it's not hard to predict what powders will be left out 4831 was left out of 308, for example.
I don't consider the differences to be significant in any way ballistics wise.
There are obvious reasons why the .280 Remington was a flop but the 7-08 is a hit, but if we only decided by max velocity, the results would be different.