The brass is only made in short runs (it's called "seasonal") because of limited demand.
There isn't much around right now, but go to midway, and put in a "reminder" and they will tell you when it is in stock.
It is a little expensive (33 cents each) but because of the low pressure of the lever gun loads, it lasts forever.
I have two 218 Bee rifles, a Browning/Winchester 65 lever gun, and a Ruger #1 falling block. The 218 Bee is one of my favorite cartridges.
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