I know that the components were available to the public in the early 90's, I thought someone that has been reloading for awhile might remember having dealt with them back in the day. I never thought about contacting a powder mfg. company and just asking them, that may be my best bet, thanks for the reply. I do have lots of diff. bullets to compare them to, although after dealing with the new Hornady lever-evolution ammo and its relatively smaller powder charge compared with similar weight bullets im a bit cautious about filling them with a hefty load of a like bullet.