Anyone have any experience with this powder? According to the interwebs, it may be the same as (or similar to) the old Alliant Black MZ that disappeared several years ago. I'm working up loads for fall pronghorn and deer trips with the 250gr. Thor Hammers. Also have a can of Blackhorn 209 on hand but the Shooters World seems to be much easier to find. Local Scheels has had it in stock off and on this summer, whereas Blackhorn seems to be milled from the finest grade unobtainium.