Larry,
This stuff:

Have enough for about another decade of use. Im only forced to use non-toxic at the federal WMA at Sherburn, and I hunt it infrequently. It isnt great grouse habitat, inspite of the fact I have been pushing birds around there for most of forty years. This load hits hard, and handles sweetly in the Nitro. There is an occasional pheasant to be found, and woodcock, but, the area is closed to all waterfowl and migratory bird hunting. A pity. The St. Francis river runs through it and would make for great jump shooting of ducks.
I dont know what Ill do when the stuff is gone. But, for now, Im good.
Best,
Ted