Never said it wouldn't work fine in different cartridge. I can only report how it did my specific rifle nor did I infer it wouldn't work fine in different cartridge.can you post some data? barrel length? what did grand produce for results? Just because it did not give the results in a long throated 270 win with a limited case capacity to bore diameter and a slippery projectile does not necessarily mean it won't be a great powder for a more over bore cartridge with a heavy projectile.
It did not provide the results hoping for in a .270 Win with 27", 5R, 1:8tw, 0.290 freebore, 3.67" max magazine COAL capacity, which does provide max performance for most .270Wins. The .270Win case capacity was virtually maxed out in this specific rifle.
I will post up load data for this specific rifle shortly. YMMV