Well I got a flyer from the powder co. with a bit more info.

It is noncorrosive, it forms a soot rather than a solid residue in the barrel should be good for 25 or so shot with outloosing any accuracy, when you clean you use any regular powder solvent.
Storage: is supposed to have the capability of extended storage under normal conditions with out any accuracy loss[ no extreme heat, what ever that is]
I notice in the velocity table that the differance for the weight of bullets is much smaller than I would expect.
with 100gr BH209
200grSW1993
200gr XTP1946
250grSW 1946
290grTMZ1936
Only 57 feet per second difference from a 200gr bullet to a 290 gr bullet.
I thought you all might find this interesting, I did. Lee