Other "same" powders are Hodgdon HS-6 and Winchester W 540. 540 is no longer marketed but HS-6 is still a common choice for me in the 28 ga and for 12 ga buffered hunting loads.
A pair of same but discontinued powders one can still run across are Hodgdon HS-7 and Winchester H 571. I recently acquired an unopened bottle of each which will be used for buffered 12 ga loads. Those two bottles should last me through a good decade of hunting and ease the stress on my stock of HS-6.
