Ditto on the primers. Those 777 primers probably won’t light BH209 for spit. If you can’t find regular primers, you should get some 777 or one of the other members of that family like Firestar pellets to tide you over until you can. Get busy on that before the rush begins.
BH209 need hot primers and a good, clean flash channel. In a pinch, your MZ primers MAY light regular BP okay, but I’ve never heard of anyone using them for that.
Good luck.
