PeteM, thanks for the burn rate links. It reminds me of how structured my reloading has been over the years. My present keg of 2400 is pre Alliant vintage and I will probably be loading .410s out of that keg for the next ten years. It isn't that I don't load a lot of .410, I do. However, I had about three four pounders of 296 on hand when a friend gifted me an old eight pounder of 2400, a lifetime supply. I hadn't used 2400 for probably 20 years, since I got a keg of 296 as a gift about 1984 when I bought a gun from a shooting buddy. I just kept buying 296 when I ran out.