I'm new around here and need help. I have 2 Knight BH 50cal rifles, 1 SS and 1 blued. I've converted the blued one to 209 primers for BH209 powder with the original conversion, which is no longer available. Is there another breech plug that will work without plastic jackets in the BH? I can modify my bolt to strike the 209 primer, I just need a breech plug like the original conversion kit had, no plastic jacket needed. Any ideas?