Tell your high-power friends that they had better grab what they can find now, the pipeline is about to disappear:
https://www.rimfirecentral.com/thre...-plant.1232531/

I think there is still a German manufacturer (or somewhere) but I have no idea what it takes to import and/or find their BP. I guess we will have to make our own from now on?

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NAR 20602
used to be "powderburner" in another life