Think about it!
Jack,
You mention the litigious society we live in, and no truer words are spoken. One thing about that though when dealing with the "changes" to powders over time.
Imagine the litigation frenzy that would take place if Alliant did make 2400 faster, ON PURPOSE. Think about this, a faster powder causes what when you use too much of it? MUCH MORE PRESSURE WITH LESS OF AN INCREASE OF POWDER. A little bit changes things a whole bunch. Imagine them doing that on purpose when Elmer's loads are still out there!
Now this is just my opinion but, I don't think there is much difference in the old to new 2400. Nothing more than lot difference of any given powder today. Here is the difference, tools. As mentioned above, Farmboy only knew there was a problem because he had a chronograph, something not available to most folks back in the day. Since there was no indication by primers or extraction, everything was good. Or so they thought.
Did anyone ever stop to think that folks used to just shoot those loads and never check them across a chronograph? It happened, and it happened to Elmer and Skeeter and ........ because the tools weren't so readily available.
We are blessed with tools today. That doesn't mean that the lot to lot differences didn't occur then, just that they went undetected by the average reloader.
Well, that's my opinion on the subject and if you take that and $5 to Starbucks you can get a real nice cup of coffee!
Safest way to be is just like always, work your loads up when ever you change a component, period!
